I own a Synology NAS, and now believe that it would have been easier to just set up a computer for the tasks I use it for. There are just too many cases where the solution is to use a container (and the clumsy web interfaces for reverse proxying &c), and if I end up SSHing into it too much, I prefer to have a more controllable environment.
It does fit some workflows very well though, you just have to assess if your needs over the next few years fit their business intentions.
Synology has an app which will automatically back up your photos to the NAS/server (only when on WiFi). I haven't been able to find an alternative to this on Android, have you? (photosync looks good but seems to only work for iOS last I checked).
It does fit some workflows very well though, you just have to assess if your needs over the next few years fit their business intentions.