Odd, my myth box has uptimes measured in months. It'd be longer than that, but it goes down when the power goes out (no ups) or I add new HW (drives, mostly). Also, to date I've had 1, count 'em, 1 segfault. This is starting with the 0.15 release and continuing up to the 0.18 release. Lest you think it's lightly used, it's a dual-tuner rig with an s-video input and serial connection to the cable box to record channels over 100. It records a minimumn of one show per day (daily news), but I'd say averages about 3 (news, a movie or hour-long tv show and Family Guy or something like it).

If by "ease of use," you mean the install is a pain, I totally agree. There are online guides that mitigate that as well (search for Jarod Wilson). Once it's running though, I've found it no more difficult than any other DVR or cable box I've used, and that includes MCE. Regarding integration, folks are running xboxen as frontends, though I've yet to do that myself as I'm working on using my old hauppauge mediamvp for that purpose.

Give it a second, more thorough look, I think you'll find you like it.