I had a 2008 model X-Trail before my current JK Wrangler and had a ball in it.
Comfortable to drive, stacks of space, and great fun for some mild off roading. It got a damn site further than it ever had a right to if I'm honest. Careful wheel placement and a few wheels in the air and it can climb mountains..........OK I'm getting a bit carried away.
About the only thing I didn't like was the CVT transmission. It had software issues that could cause it to go into limbo mode and at the time Nissan were turning a deaf ear. Probably sorted by the time the 2011 models came out though.
Best resource for anything X-Trail related is the australianxtrail forum. What isn't on there isn't worth knowing.
2 things I'd advise if you're planning on taking it off road............firstly get a front bash plate (Jalal on the forum used to sell them) as mine paid for itself 100 times over. After that, take a knife to the rear bumper. They had a 1" high vertical lip running right under the bumper at the lowest point and lots of guys either used it as a sand scoop or got it caught on rocks and ripped the bumper in two. Cut that off and there's a lot less chance of needing a new rear bumper.