[ghaff]

This isn't really the same as Flickr though. It's photo backup.

For that, it may actually be better than flickr in that it apparently supports the major raw file formats including DNG.

However, it doesn't seem to be designed for any sort of photo sharing (although you can access photos remotely yourself).

Bottom line is that, if you're just using flickr for backup then, yes, something like this is probably a better match. On the other hand, if you use flickr as a photo sharing site and the backup is at least partially incidental, then I'd probably stay with flickr and maybe use both.

I have a flickr Pro subscription but I don't really view it as a backup system although having an additional set of (JPEG) backups of my favorite photos is a nice side benefit.