I've been using this printer under OS X for a couple of months now, and it works well. The OS X driver is still in beta, but it works fairly well.
The printer takes a while to format the page before printing, but the output is tons better than my Epson inkjet can produce on plain paper. Perhaps with further driver development, the printer will be a bit speedier.
But really I have no complaints, it's a great printer. Go for it, you won't look back!