My mother has an '05 that is getting traded in on a '08 as soon as they bother to build the new one. It has been a good vehicle, mechanically speaking. No problems that I'm aware of, apart from hers being a magnet for idiot drivers who like to sideswipe other cars. I drove it a bit and it was a nice vehicle, though the little screen kept telling you that it needed to go in for service all the time (I'm sure that an OBD code scanner could clear that if you owned one...maybe). Seats were a bit firm for my taste, but overall it was quiet and comfortable.
Here's my take:
The back seat and door is tight for grown-ups. The front is pretty snug, too. Cargo is OK, but I suspect that your Xterra has more interior room. Overall MPG with the 3.7L should be around 16-20, depending on how you drive it. Nice vehicle all the same, though. Front visibility is actually very good, rear is good. Auto trans seems to shift up and down when you want it to, without having to index the gears manually too much. If they didn't still want $19k for it and if people hadn't run into both sides, we would have bought it to replace my wife's car.