Hey guys, I'm a SIUSOM student. I can answer any questions for you if you'd like.
Let me start off with a few:
Reasons why I chose SIU
1.) You get the same MD degree whether you pay more or not.
2.) Early clinical experience.
3.) PBL is way better than lectures.
4.) No scut work required
5.) Caring/competent faculty
As far as not being a high tier school, SIU does very well on USMLE exams. Our step 1's are always above average (some years higher than other). Since the new step 2 began 2 years ago, we're the only school to have a 100% pass rate (a few scores are yet to be reported for this year, so we're keeping our fingers crossed).
The early clinical experience is key. Believe it or not, your first two years of studying don't amount to a whole lot when it comes to applying to residencies. Here's why: A dean's letter gets sent to the residencies you are applying to. This letter contains about 8 sentences total from your first two years (4 for each year) basically stating that you showed up, you passed, you didn't tick anyone important off. The letter then has a paragraph for each of your 3rd/4th year clerkships which are either 4 or 8 sentences long (depending on if the clerkship is a 6 week "short" or a 10-12 week "long".) It will also include your step 1 board scores, and if available, step 2.
Another important part of residency application is going to res. programs and doing away rotations during your 4th year. SIU students really shine here (thanks to our early clinical emphasis). Once you've made a good name for yourself at a residency program, you've got excellent chances at landing one there.
Don't worry about the PBL, it's usually an adjustment at first, but everyone is in the same boat. I'm pretty sure none of my classmates would trade if for lecture based if they had the chance.
The AWPA is a strange deal, most likely you'll get an official acceptance, especially if you're on it at this point. Some years the school makes it to the wait list, other years it doesn't.
The admissions process at SIU is going through some changes. We've got a new admission director this year and I hear good things are on the horizon. I definitely hear you about SIU's interview process being kind of sloppy. I showed up for one interview and the interviewer turned out to be out of the country and no one ever bothered to inform me of this, but it all worked out.
If I could give you one piece of advice it would be to get as much clinical experience before med school as possible. It really seems to help.
Good luck, I'll try and check back here when I get a chance.