you graduate with invisalign certification. you get to do implant overdentures and implant crowns. you can't place implants them unless you're in honors implant or honors perio (elective for 4th year students which you have to apply to). if you're accepted into the honors programs you can do cool stuff like electrosurgery (crown lengthening) and all that stuff..but it's only for a little over a semester that you get to do it
save yourself the hassle and try to live next to school for the first couple of years. almost everyone i know moved closer to school after living in queens, brooklyn, nyc. the people i know who live close to manhattan are only a 10 minute subway ride away. prices that far away from manhattan are very similar..factor that in with an unlimited metro card (about 120 dollars i think) and you're looking at a price difference that's negligible.
in terms of faculty and students...every class is different and has their own dynamic. i've just noticed that i dislike every new class more and more because they are just way too intense (which is a good thing), but friends in first and 2nd year tell me that there are a lot of 'gunners'. who knows though, really.
faculty are hit or miss. that's the case with every dental school. but you adapt
and yes patients aren't difficult to get. sometimes it's the right kind of patient that's hard to get for certain procedures. but as long as you keep your academic coordinator and group practice director in the loop, you'll be fine.