You probably won't have any issues, but here is what I learned from buying my Blazer.
1. "I removed the catalytic converter and it really opened it up!" means "The engine is running rich and ruined the cat so I had to take it out. And then I did a hack job on the exhaust so you will have to replace the whole thing."
2. "Everything works" means "The power locks will stop working in a week, the temp gauge will stop working in 2 weeks, the dome lights don't come on when you open the drivers side door, and you'll have to lubricate all the hinges and mechanical hinge points to get things to work."
3. "A slight fender bender" means "The drivers side door is about to fall off."
4. "A little rust" means "Will not pass state inspection unless you cut out several parts of the truck that you can't easily fix, such as the part behind the passenger door including the seat belt mount and the tailgate hinge mounting point."
5. "I took it for one last drive before you came over" means "Will not start cold, replace the fuel injectors to fix that, plus it will blow smoke when it starts so you need a valve job - if not rings, too."
6. "Always changed the oil" means "Never changed the oil."
Anyway, I'm not bitter!
If I were you, I would crawl around underneath and be sure there are no spots of rust through the floor ANYWHERE and I would remove the rear tailgate cover and inspect the glass mechanism.