Now GSMArena made an extensive review about this phone and according to them:
If you do, you’ll be getting an entry-level messenger which is probably worth every penny you paid. A decent screen and an awesome keyboard, social skills and messaging and a music package complete with a 3.5mm audio jack and a microSD card slot. For the right user, the Nokia X2-01 is the perfect package at the perfect price – about 75 euro.
The Nokia X2-01 is bottom of the food chain and proud of it. The right attitude will pay off.
My opinion on the other hand:
Albeit the Nokia C3 costs a bit more, it is a more bang-for-the-buck choice 'cause at that negligible price difference, you'll get a slimmer phone, a 2mp camera and WiFi (wifi is everywhere nowadays). You're better off with C3 - if an affordable, feature-rich qwerty phone is what you're looking for.
Check out the Review from GSMarena