I'm an M1 at Quillen right now. So far I absolutely love it and am happy that med school admissions gods have allowed me to come here. I'd be happy to address any specific questions via PM. As for broad generalizations, cheap cost of living, beautiful part of the country, small class, friendly students, friendly professors, friendly administration, friendly custodial staff, excellent access to professors, very low level of class tension/aggression. There is a focus on primary care, but students can and do match in any field. I feel no pressure to pursue primary care and feel no pressure to pretend to be interested in primary care. On the other hand, I think we attract students interested in family/internal/rural/global medicine.
I have no way of commenting on level of instruction relative to other schools. In my opinion, success as an M1 at least will rely mostly on self directed learning. I've received everything I could want from instructors. When I do well I get up and work hard. When I struggle it's because I watched too much football. It's not because of my instruction. Others may disagree.
Feel free to contact me via PM for specific questions. As an addition, I feel no need to promote the school. Last year I was applying and all I wanted was some honest opinions and real information. There are pros and cons to everything, including here.
Good luck to you. If you choose to come here I doubt you would regret it.