Special Edition Vehicles - Going to buy a tbss info plz

well im going to buy a trailblazer ss 2007. 37k miles on it. 2wd rwd. what do i have to worry about as in problems, recals, defects? im not going crazy with it it gets sheet gas mileage already just wanna make it reliable. ive herd good and bad.

I'm looking at getting a TBSS as my next ride. All the research I've done I found you will want to add a transmission cooler and other then that they do really well. Anything else you do will be an upgrade.

Those are low miles for an 07. Nice find.