Looking to pick up a new router. The NAS-characteristics of the Time Capsule interest me though. Having a single location to store family photos, videos, and more would be wonderful for myself and the family. I seem to find good and bad reviews about the Time Capsule, with most of the bad aiming at durability and longevity issues. I understand no hard drive is ever safe, but is this something that has since been rectified? I could deal with a failing disc drive; I don't want to deal with software issues. That said, can anyone weigh in on the functionality and durability of the Time Capsule? Are there any performance differences between the four generations? My primary endpoint is a router with storage, and the Time Capsule is a much cleaner enclosure than a Airport Extreme with a USB HDD attached.