Have it checked out by a competent mechanic. If it checks out, buy it. If it interests you, watch some paintless dent removal youtube videos, buy a few tools and work on the dents.
I disagree that the car says that it hasn't been mechanically taken care of. I've got a Fusion that my son sideswiped a landscape truck. Since it was 10 years old with dents along the entire side, it got totaled. I bought it back and threw on a junkyard mirror to replace the broken one. I take care of my cars. Brakes are always up to date. Spark plugs, brake fluid, coolant all changed before the factory says to do it. The outside door handle just gave up this week. My younger son has been driving it and asked what a door costs. I'm a junkyard enthusiast, so without looking, I know they're fifty bucks and know where the line of Fusions are in the junkyard. We'll go sometime and pull a door to get that handle working again. The door won't match. It'll be silver....just not the right silver. Been watching and hoping a brilliant silver one would come into the yard.