Currently using SOS Online Backup, so far up and download speeds are much much better than with Crashplan. (located on ddd-sea.crashplan.com, down and upspeed are 2 Mbps...)
Pricing is the same if you upgrade from the SOS app ($59.99 / year instead of $79.99)
After doing a fair amount of reading myself I settled on SOSOnline Backup - http://www.sosonlinebackup.com/
They have a couple features that I like. They have no file size or type restrictions. They allow you to backup network drives in Windows. They do not delete any file you upload, ever. "... many major service providers will remove files from their cloud 30 days after they are deleted from your computer. What happens if you need to restore a file you accidentally deleted 6 months ago? With SOS you can backup forever without any worry of data being gone later. (You can always manually delete stuff from the cloud if you don’t want it there any more.)"
And they are comparably priced to CrashPlan. So if you want a similar service but with some different and perhaps better features I'd give them a look.
You should look into SOS Online Backup. They are outstanding! I couldn't be happier after leaving pitifully slow Backblaze and Crashplan. Like Crashplan, the offer deleted file protection which not many do. SOS can also backup NAS storage and network drives so you can do your entire household on the single computer plan. There prices are dirt cheap too but you need to sign up from within their trial program. On their site, there price is $7.99 a month but from within their trail program, it can be as low as $3.61 a month.
http://i.imgur.com/jGYjWad.png
Their speeds are great. I max out my upstream bandwidth of 10 Mbps so I don't really know how fast is can actually be. Restores download at 30 Mbps.
I had a bit of an issue when I was trying it out at first. Testing the restores, it would go fast but then drop down to dial-up speeds. However, that only lasted a few days. They must have been having some sort of network issues. It's been smooth sailing ever since. I even mistakenly deleted half a TB and and had no local backup since I knew I had a copy in the cloud and and it only took a little over 2 days to get it back. All my files where in perfect shape.
I don't have one yet but once I signup for one, it'll probably be SOS Online Backup. I asked their support and they only charge $300+hard drive costs (if you do not provide your own) for courier service as it would take me ages to re-download my whole backup. 6TB and counting (currently upgrading to a 16TB RAID 6) will take forever to download.
Crashplan offers courier service for $165 but it's only up to 3.5TB of data and you cannot order multiple kits. If you want to restore anything larger than that, you SOL. The only option for a restore would be to re-download.
>Can I order multiple Restore Kits to recover the data from a single computer?
>No. You can only restore as much backup data from a single computer as will fit on a 3.5 TB hard drive (US customers) or 1 TB hard drive (Australia and New Zealand customers).
As far as I know, Backblaze still does not officially support backing up NAS devices - Source
Any of the online services would probably work. I personally use SOS Online because they a) they allow multiple computers on the plan and b) the service includes remote access to your files from the net.
I've started looking into http://www.sosonlinebackup.com/ they seem to have a fairly good reseller program. Offer good security it seems. I haven't tried them and am not associated with them in any way shape or form.