I own a 08 Trek 4300 and love it! Some of the components are not so good, but the frame is solid! I’m 280 lbs. and it can take what I give it. I have had to replace my wheels, and crankset, and other regular maintenance items, but Im fat and ride pretty hard.
On the other hand, my friend rides and older Giant Rincon, and hasn’t done a thing to it, other than some oil on the chain and tubes and tires
Love the Trek, just for the fact that the frame is bomb proof! And if you are able to wreck it, has a lifetime warranty on it.