Welcome to RCNT!
The honest answer is "It depends..."
If you don't do anything with it that might be considered extreme, it might last the week.
Don't get me wrong, for starter trucks, the T-Maxx is a great MT...but it has a tendancy towards and a history for being a money pit.
If you want something strong out of the box, take a look at the
HPI Savage trucks. They are built tough out of the box...but will get mixed reviews on their speed.
If you are a basher, the Savage will work. If you want to race, then think about the Revo by Traxxas. Both are trucks...the Savage is a true MT and the Revo is kind of a cross between an MT and a stadium truck. The Savage is a great basher and tough as they come. The Revo is built well and very fast.
Note, any RC you buy has the potential to break the first time you drive it...so be prepared to spend some money on any ride you buy. But to limit the upfront costs...take a look at the two I mentioned...as they will also save you money down the road.
Good luck in your quest and welcome to the hobby and to RCNT!