Great client, stable, fast, reliable.

I’ve been using this as my go to IRC client for quite a while now, both on Mavericks and on Yosemite. It’s been great! It’s performed just as well as the Xchat for Linux that I was used to. I use it across multiple servers with multiple chat rooms open and it never misses a beat. And while I also love Colloquy on Mac, I find this is much more useful if you’re a channel admin or IRCOP.
Give it a shot, if you liked Xchat on Linux or Windows, you’ll like XchatAzure on Mac.

xoagray about XChat Azure