I just spent a minute poking at it: my dashboard page didn't load, then it told me there are no open tickets in the system, then clicking on a different ticket number to open it didn't do anything, and then the server stopped responding. (Edit: it took 48 seconds to load the ticket.)
They also have a little stopwatch button on some pages that pops up a "Browser Response Time" window that tries to put the blame for slow page load times on the user's browser. Weird, wonder why they need that...