it may take a while to get a decision. You are wise to get all of your financial aid materials in now, as they will start releasing that info in march. SU at sticker is definately not worth it. I applied to SU in Mid November, and didnt hear until Mid January. However, I dont know when they started making decisions, so I may have been in the first batch to go out. I'm still on the fence about SU. while I would love to go there, Its still very expensive, and I wouldnt mind a little more money, or lowered stipulations- and then I would be mailing them my seat deposit immediately. the majority of applicatns get some money from them ( not a ton, but something), and they are proud of that fact. SU is very expensive, even for undergrad, so at least they are consistent. It is a very respected school in western ny, but with the competition at UB ( where you can get state tuition as a 2L and 3L) im not sure its the best decision for some.
I would try to figure out what you would have to get in order to make financing SU work. That way once you get your financial aid package you can tell quickly if its worht it or not. IF you ahve been accepted at some other schools, then you need to weigh those options, and watch for those seat deposit deadlines. If you dont hear by then- go with your gut. best of luck