Isn't that something?
I bought two of them for use in a small business environment. When they worked--which was, frankly, hit and miss on a good day--they were on the low side of "OK". But they never worked as smoothly and quickly as they should have.
One of the two is still going. The other hung it up one day and dropped off the network. It seemed to be semi-alive (after a hard reset, it was creating a wireless network with the default SSID and that was it) yet it would never boot up all the way. It lived two months past the warranty, so I phoned Apple to see what they'd do, hoping that a pro-rated exchange could be made. They were polite but insistent that nothing could be done, I'd just have to buy another one. Popping it apart revealed that the heat speader pads had leaked some kind of oil on the PCB and its component parts. From what I could see, the fallout looked to be corrosive.
Since neither of them worked all that well from the start, I went down another path:
http://greyghost.mooo.com/timecapsule-vs-freenas/ (no ads, spyware, malware or anything else--just the facts, folks) and haven't looked back. It gets the job done, without a hassle.
Frankly, when a 200MHz Pentium Pro operates more reliably and beats the pants off the Time Capsule in terms of performance, I think it safe to say that there is a problem. It only gets rebooted when the UPS tells it to do so after a long enough power outage.