Actual 10th %ile (GPA-wise) who got into my state MD school this cycle.
My interviews were great. I have held multiple jobs since I graduated college over 4 years ago. This has given me plenty of practice in interviewing. To me, unless you do an MMI (which I didn't,) it's pretty much like a job interview - why you're a good fit for a spot, what experiences bolster yourself, how you need to sell yourself without being arrogant, etc.
I really bolstered my application sans GPA repair after college. I made a 512 on the MCAT(which was >50th %ile.) I got a ton of volunteer hours, and had a lot of shadowing hours with my research position. Speaking of, my current job gave me a TON of opportunities to grow in many ways; which came off in my primary app, secondary app, and interviews.
My huge upward trend was probably my best selling point. My first 2 semesters of crap in college made my GPA have a bad set point. I worked my butt off to get to a >3.2 sGPA and >3.4 cGPA. My GPA came up in my interview and had to sell myself. Not only what happened, but how I remedied it. Even though my transcripts SHOWED my trend, I still had to explain HOW I did it. They really wanted to know me and how I learned from my mistakes.
In all, I consider myself pretty lucky. I should have only been applying DO but I have a chance to become an MD. My GPA held me out of every other MD school to which I applied pretty much; please don't take my experience as a "I'll just apply MD cause this guy did it." GPA is still very important.