Pros: Low Price, repectable data speeds, fits 4 post rack
Cons: Buffalo Support is terrible. Beware, if implementing into a large Active Directory, will not pull users. It pulled my groups fine but not users. Called Buffalo twice and even after firmware update to 1.50 still won't pull domain users. I have 2000 user accounts and Buffalo claims it can handle up to 10,000... not true. tHer is a work around by joining it to a work group and having it learn credentials buy browsing to a special share.
Summary: Disk space is getting very cheap and 1TB USB drives are becoming common. However, as drives get bigger, and we store more data, there's more to get lost if a drive fails. Backing up to CD/DVD is becoming less attractive as they get left behind in this "space race"; Blu-Ray is looking attractive but still relatively expensive. The TeraStation made a lot of sense to me as my primary back-up.
Summary: A bit pricey, maybe, but it does the job of high volume storage superbly with plenty of space for back-up using the RAID options. The unit operates quietly and is quite small, given the amount of storage it can accommodate. It also works reasonably quickly, although the speed of wireless networks in particular is likely to be limited by the capability of the wireless hub, switch or laptop / PC Etc.