Blazers are pretty sweet, one of the last solid built suv's that are actually off-road worthy and can pull some weight on a trailer. That's got the 4.3 vortec in it, right?
I had a 93 GMC Sonoma with a 4.3 in it, it was a solid little truck and fun to drive, it just wasn't quite big enough to tow what i needed. It actually pulled the weight just as good as my dodge maxi van with a 318, it just didn't have the brakes to stop it quickly.
Take care of that thing and it'll take care of you, chevy builds their trucks right. I was a hardcore ford guy until i bought my GMC sonoma, now i'm all about the bowtie. More dependable, and easier to diagnose and fix when something does go wrong.