I rented an Xterra, which I used for some highway driving and some rough off-road use.
Thoughts? looks damn good. For a tool of transportation, there are better utes. It's a not a great vehicle if you want one because it's "cool." Rough ride, before the '05 the power is measely, handling a little spooky with the live-rear axle. They are way above average as an off-road tool, can take a (reasonable) beating, and it will be realiable.
The important thing is, do you like it? If so, screw opinions. Enjoy.