We just started using HipChat on monday. Overall we're very happy with it. This new client is definitely a bonus.<p>One thing we're a bit sad about though is the fact that it follows the same pricing model as Confluence and Jira for self-hosting, so for 25 users you pay $1800. This is okay for tools such as Confluence and Jira but HipChat (no matter how good) doesn't add that value for us.<p>This is a bummer since we love self-hosting, and for some client data it is even a requirement. It's especially in stark contrast with the cloud version, since it's free for the features we use..
My personal pet peeve is that it doesn't do "s/foo/bar/" anymore in the beta (whereas this does work in the desktop-client and current stable webclient).