Well for longer games with 24h turns or whatever, I'm much preferring Llamaserver to other options. I just really like the system of confirmations and notices, you get all the info you need to insure it's all running smoothly.
But doing a mid sized blitz style with 15m turns, email would be ridiculous.
I also want something faster paced at times, I think this could be a good thing. At least, if we had more than 2 players for it.