I once had to restore around 2 TB of RAW photos. The app was a mess. It crashed every few hours. I ended up manually downloading single folders over a timespan of 2 weeks to restore my data. The support only apologized and could not help with my restore problem. After this I cancelled my subscription immediately and use local drives for my backups now, drives which I rotate (in use and locations).

I never trust them again with my data.