Except for the rare power outage, mine has been powered up constantly since I got it. I do reboot it every week or so just because of my OCD. I also clear the MPD log and restart MPD when ever I rip a new CD, again because of my OCD, no other reason. This thing is rock solid stable, has never crashed. The only issue I've ever had was powerline network related, and easily solved.
Cornelis