Hi,
There is one huge limitation of BB for me – NAS support. I store everything that matters on NAS devices for the added protection of RAID. BB will NOT support RAID and most other vendors are similar and force you to buy an expensive business plan. Crashplan supports NAS backup under the personal plan.
A NAS approach as an added benefit - 3rd party backup. (e.g. Mount the NAS drives on a dedicated backup device and backup away.) I love this option because my primary computer is asleep the vast majority of the time, and backups will still occur. In case you are wondering, I am using a lower power SBC as the 3rd party backup device so it is pretty efficient too.