I bought my Nitro a month ago and I love it. I was a little nervous when I read some of the reviews, but I have not had any problems that were reported. When I got home I noticed that I could not put my passenger side when down or up on that side, but the drivers side I could close and open it so I just took it to the dealer for replacement and have had no problems since. Even if I do wind up with transmission problems I have unlimited powertrain so I am not worried at all. I only got the base model but with automatic and I love it. it is not limited at all.
I love the interior design, and the tinted color windows in the back. It's a little darker than other cars which I like. I love the color (electric blue) It's also very roomy especially in the back as well for foot room. I was debating between this and the Liberty and I just felt so small.