I know some people have already posted their views, and they've been super helpful, but here's my recap.
I took the Michigan Flyer from the airport and then a taxi to my hotel. I didn't have the luxury of doing that on the way back, since I was in a bit of a rush to the airport and couldn't wait for the shuttle. If it's at all a possibility, though, I'd recommend the Flyer. It's cheaper, it's pretty convenient (short walk in the airport), there's WiFi, and the cab to the airport cost me over $70.
I stayed at the Campus Inn, which was really nice. It was about a 10- to 15-minute walk from all the events, which was a bit of a problem during the tornado but fine the rest of the time. I wished that Michigan had made it clear that I'd be having a roommate for the weekend. I was a bit surprised to get back to my room after the faculty reception to find someone else's bags there. My roommate was lovely, though (as were the rest of the people I met), so it wasn't at all a problem in the end.
Campus is beautiful. Absolutely stunning. I had to keep reminding myself that 70+ degrees and perfect would not be the norm for weather, but I imagine it's also gorgeous in the winter. Ann Arbor is cute and definitely has a college-town feel. If that's your thing, you'll feel very comfortable there. Coming from New York, it obviously felt small, but that was inevitable and expected. The restaurant scene seemed VERY limited to me, which was confirmed by some current students I talked to (and a visit to Yelp). Students seemed relatively laid-back and fairly preppy. When I walked around Ann Arbor, I felt that I was surrounded by undergrads, but the law quad seems sufficiently removed. I loved my undergad and I'm only two years out, so I didn't have a problem with the college feel of the school, but it's definitely there. To me, at least, Michigan feels very much like an insulated and isolated school community, which might not be ideal for someone who's looking to treat law school like a job. That said, the older students said it was a great place to have a family, so I think there could be something for everyone. I did feel like I'd need a car to be really comfortable, but I think the same goes for any school that's not in a big city (and some that are).
As for some specific events:
-The faculty reception was really nice. The faculty members I spoke to were very friendly and seemed quite approachable. They were completely unfazed to be moved into the sauna of a basement when the tornado hit, which I appreciated - I could definitely have understood if they'd been more diva-like about the whole fiasco, but they seemed really good natured overall.
-The housing panel was somewhat helpful. They did a good job of bringing in people who represented the spectrum of housing options. I didn't exactly come away with a sense of what it would be like living in Ann Arbor and commuting to the law school (like how logistically challenging that might be).
-The crim law class was great. The professor's style of Socratic method could be intimidating (when someone wasn't giving her the answer she was looking for, she kept making this "gimme" beckoning gesture with her hand as if to pull the right answer out of them), but the class was really lively and entertaining.
-The mock class was probably my favorite part of the programming. It wasn't so much a mock class as a deconstruction of law school and why professors teach the way they do. His method of "cold calling" was really nice; he called on two people randomly, and even if what they said wasn't exactly on point (which it generally was - well done, cold callees), he would spin it so it fit into his argument. He made a great case for the overall teaching method employed by law professors. One line in particular stood out to me: "I could teach you to be great lawyers without ever teaching you an actual law" (I'm paraphrasing). What he basically meant was that you could be trained to think like a lawyer and analyze and present arguments like a lawyer with entirely made-up rules, jurisdictions and cases. He also said that a fundamental goal of legal training was to teach students to understand other people and to determine the best argument for your audience. I was convinced. He was awesome.
-The faculty panel was quite interesting. The professors were mostly younger (so maybe more willing to talk on panels to prospective students), and they all stressed the accessibility of the faculty at Michigan - this seemed to be very much on message with the rest of the preview weekend. I'd like to know how that accessibility has changed (if at all) with the rise in the student-to-faculty ratio. I definitely got a sense of approachability from the members of the panel.
-The career panel was one of the less helpful parts of the weekend. I appreciated the honest way the alum answered questions about what hiring partners are looking for, but to be frank I tuned out some of that talk.
-The academia/clerkships discussion was excellent, and I include the blaring frat music as part of that excellence. "Margaritaville" played - how could you NOT love that? I thought it was great that Michigan has a dedicated staffer responsible for building and maintaining relationships with judges (with impressive personal experience as a clerk); I definitely bought the idea that the existence of such a position improved Michigan's performance at obtaining clerkships for its students. I also loved J.J. Prescott's presentation. I'm not looking at academia myself, but I was impressed that he took the initiative to start a Student Research Roundtable to encourage the students who are.
-The activities fair was a standard activities fair. Dinner with the students was nothing remarkable (though I loved that they had sangria with the Mexican food). All the students I spoke to at both were friendly and warm and also were willing to make an honest assessment of my law school options, even if their conclusion wasn't that I should wind up at Michigan.
-I also really enjoyed the bar night and the open house at the Phid House.
Overall, it was a great program. Honestly, every person I spoke to at Michigan was great, and the students seem genuinely happy. I'd never understood how someone's decision could be made by a visit - isn't that when every school puts its best foot forward, and shouldn't you have enough skepticism to recognize that? - but I can see it better now.