What is your intention for it? I started out on a ridged 94' Giant Yukon beginning of last year. I put XTR V-brakes on it, deore 9sp rear wheel/derailer, and hit the trails. About 1/2way through the season I upgraded to a 2000' suspension fork(medium-high end). The bike was great, durable, fun, and totally decent enough to get me into the hobby of MTBing. I'd guess that Trek is as good as the bike I was riding. If you're just getting into MTBing and that bike fits you well and the drive-train is in good condition and works well, I'd say it's probably a solid buy. I know others are saying it's not worth upgrading, but I disagree. I think that if you're on a budget(as in don't have the money, not "I have it but don't want to spend it) then upgrading a bike like that might be a good option. If it shifts and fits you well, riding it as is, then upgrading to a better 1yr old NOS (new-old-stock) fork and new BB7 disk brake in the front as you progress could be a great way to go. Depending on the hub on that bike, the upgrade option will include a new "on sale" wheel-set or finding yourself a front disk-compatible wheel on craigslist.