Hmm, if it's large and cheap most suck (I had one large and cheap, not that it sucked but wasn't as good as my small bamboo which was cheaper but.. well.. really small). If it's a new model the pen will wear out pretty quickly so be sure to learn the location of your extra nibs for it :! (I didn't know about mine, and continued to paint with a worn nib... well, some of the surface of the pen's tip was destroyed. Don't make my mistake xD!). If it's an old model KEEP THE PEN. Old tablet's pens nibs are indestructible but the same as new ones. And you can use them on new ones (I think) cuz they are the same size.
But anyways! What's up, what are you working on atm?
If I'm disturbing your work, please, do tell me, so I can stop.