Have you considered Synology? I have had problems with a QNAP enclosure in the past, was supposed to be the top-notch model for a RAID 5 and the mobo inside it crashed just after the warranty expired. Needless to say, there was no software-based solution to help me restore the RAID array and retrieve the data. Their customer support was" yeah, sounds like the controller is dead, you'll need another enclosure; as far as the data on the array, sorry about your luck".
Lessons learned: never go RAID 5 for back-ups; get a simple and reliable RAID 1 enclosure that has good ratings. I had that Synology for years now, and one HDD went bad on it, just swapped it and never had a problem.
Just my experience, your mileage may vary.
Pretty much what I was thinking - Raid 1 for backup of family photos, docs, music, ...
A couple of interesting considerations...
1. The Excito Bubba 3 has no fan so its dead quiet.
2. No fan etc = very low power consumption.
3. Can / most probably should be used as the primary WiFi router.
4. The HDD (according to the homepage documentation) is a Western Digital Caviar Green (Energy saving) and as such not a great choice for Raid 1 application.
5. Lack of a second inbuilt hard drive means an external - As the bubba 3 has no fan the casing (aluminium) is used as a heat sink. Thus the second disk needs a casing (if used in an enclosed space) and this is relatively expensive.
other than that it all looks pretty damn yummy.
QNAP / NETGEAR.
1. Specs are pretty much the same.
2. Enclosure holds two HDD making RAID 1 a breeze.
3. Router possibility is not an option (I believe)
4. Power consumption is much higher than the Excito Bubba3 but less than my PC. (8W < 30-60W < 150W)
Had a problem with Netgear equipment before - so i'm leaning towards the QNAP.
My question still stands however - Is processor power and differences in RAM size going to make significant (user detectable) differences to streaming capabilities of the units ?
my Synology (it's a DS 207+) still runs strong after a few years of heavy usage. Got one for my office and it survived quite a few power outages (due to storms and such). It's a simple model with 2 HDD bays i setup in RAID 1. The simpler, the better and more reliable., not to mention cheap to replace in case it goes down(like a mobo problem in it or something of that nature... the HDDs are easy to replace, although require opening the unit up).
now they must have some successor to that model in their line-up.
The NAS explorer is easy and straightforward to setup, and the whole unit is built very solidly, like a small tank made of plastic.