Notable limitations without a premium subscription include FTP access being limited to unsecure connections and a three user account limit. A few other features, such as RSS feeds on new images, are only available with a premium account - feel free to check out the full list yourself.
Of course the dilemma of the premium subscription is that many of the features can be replicated without it - web access to the Stora, for example, is a 'simple' matter of having a dynamic DNS point at your home IP. Other features, such as automatic uploading of images placed on the Stora to a Flickr account might prove worth the small yearly fee. Facebook integration is also here so photos can be uploaded from the Stora to your account. A slightly annoying limitation, however, is the need to confirm the upload on Facebook before the photos show up - at least this is a free feature, though.
Even without the premium subscription the Stora is a capable repository for your media library. As you'd expect, the Stora is DLNA certified and will stream your music, videos and pictures to any uPnP device you might have on your network. I had no issues getting my PlayStation 3, Xbox 360 and a Sonos ZonePlayer S5 to work. The Stora will also run as an iTunes server, if you so desire.
The desktop client used for managing files on the Stora is well designed. If you're okay with managing the file system yourself it is, of course, possible to map the Stora as a network drive, but if you're new to the concept of NAS devices, then having Netgear hold your hand a little while you acclimatise will prove helpful. The menus are intuitively and clearly labelled such as I feel convinced even the most computer illiterate of my (elderly) relatives would have no problems using the Stora.
It's impressive to think that a 1TB NAS device can now be had for £190. That the Netgear Stora is also incredibly easy to set up and use is a bonus and although it does require a subscription the functionality added by MyStora.com isn't bad value for money. If just a couple more features, most importantly a BitTorrent client, were added this would be the perfect entry-level NAS.