Best IRC / Group Chat Service for Developers

Our dev team is looking at using a group chat service and is leaning towards a hosted solution. I wanted to push for an ejabberd server, as I've used openfire in the past and it has a lot of stability issues.

As far as the hosted services here is my take:

Campfire: very feature rich. incredibly proprietary. works well by iteself, but wont work with adium or limechat without shitty bridges, adapters, electrical tape.

Grove: Simple, good. Crap support. Going out of business. Next.

Flowdock: Google wave take 2. Next!

Do you agree / disagree? Are there any better alternatives?