Great questions all, keep them coming!
Thanks! On a more interesting (perhaps) note: what did you NOT like about your summer, but decided you'd still want to go back full time?
I really like this question, because it shows an understanding that any job out of grad school is far from perfect. My summer was far from perfect. I will say on the plus side though, these firms do a *fairly* good job of immersing you in the day to day life unlike law firm summers.
What I didn't like: I really wasn't sure I was having amazing client impact or anything. It sometimes felt like I was just working on certain workstreams that the partner wanted for whatever reason or because that's how they interpreted client demands.
Powerpoint can get really old even within the span of a summer.
The hours on my particular study were pretty brutal, though just like full-time this varies a lot across studies. Some are like 9-6, some are like mine (rare to be out of the office before midnight), and most are somewhere in between. But hey, I figure if I get the tough experience now and survive then it can only get easier (one hopes at least).
I decided I want to go back full-time because I really didn't like the vibe I got from law firm associates I spoke to (law firms and MBB alike will allow you to split with the other by the way, a good option if you are on the fence) - they seemed categorically miserable, and the unpredictability of hours for corporate seemed to really wear on them. Also, on the positive side, I liked the potential exit ops into business better and thought they would be more interesting. Finally, you will go through drudgery at both places, but the work at MBB seems more "exciting", though again Powerpoint ad nauseum isn't the sexiest thing either.