I bought my blazer about 2 years ago, and haven't had any big problems with it. Sure I've had a few small ones here. and there. It has 155xxx miles on it. Any car you have is going to have there problems. I drive my Blazer year round. On, and off road. It has been a really good suv so far. It runs great, and drives really well. Gm does need to make some improvements to the interior but over all I have had good luck with my blaze. 155xxx, and still going strong.
Gets the job done in snow, mud, and on the street.