Yo,
good advice shiznot. I can throw in my two cents about our testing centers to cover i think most of the rest of the testing centers in chicago-
I took the august MCAT at U of C twice- it was okay. the big drawback is they have more than one testing room so they separate people into different rooms which sucks cuz obviously hte proctor goes at a different pace. so we had one group that kept ending earlier then we did so they would leave, talk, outside our door, shout and scream while we were doing verbal or bio... and that kinda sucked. the proctor was also on some power trip. the short, bulky white guy... i had a girl across from me have her cell phone go off and she wouldn't get up (to claim it was hers) and take the blame... so it went off for like five minutes cuz the person kept calling her over and over. finally she got up and turned it off. we did our tests on tables which was nice cuz there was plenty of space.
IIT- not a good testing center. i took it in june both times and it was tooo hot. they don't have AC or they don't use it for the test takers cuz we had to sit in absolute, dead air, even the doors were open which was bad cuz then every so often you could people walking by talking. the proctors were alright, just some old ladies. there was a cockroach that freaked out some girls.... the place was a litle run down.. and the lighting was awful I couldnt see the test sheet, had to have my face like two feet away from it. and the spacing was too cramped, the seats had those swivel place things so you had little to no space towrite the test on.
it looks like every test center has its flaws. i think tho for whats it worth, you should just choose a place nearest to you and make sure to register early.