anyone use MetroPCS as their cell phone carrier?

I am thinking of switching cell phone providers and was wondering if anyone here has/had them and had an opinion.

A buddy of mine has it and hates it. Make sure you check their coverage map.

I used to know someone who called it Metro Piece of smurf poo !

Nope - I use T-Mobile

I am getting the idea that they are not so good. Oh well - back to the drawingboard!