My blazer was my first vehicle and I put that thing through so much. It will drive through just about anything and the 4WD is great for Wisconsin. I've taken it through rain, snow, cornfields, and just about anything you can imagine. It drives great and I definitely love my blazer, the only downside is the gas mileage. Other than that I wouldn't change a single thing on my blazer.
The durability of it is amazing. These things will literally drive through anything.
The only thing I would change about it would be the gas mileage on it. If it got better mileage I would definitely not be selling it.