Simple and solid
Ive been using WriteRoom for around two years, and I have never had any problems with it. It does what its supposed to do. Whether its worth $30 or not, I dont know. But Ive used software thats similar (OmmWriter, JDarkRoom, PyRoom on Linux) and havent liked the feel of them quite as much. Default colours are a bit geeky, but you can change them.
benjaminwil about
WriteRoom, v2.5