https://www.arqbackup.com/
ARQ going to the bottomless amazon drive, encrypted, compressed, deduped. its not fancy at all, but it works very well with drivepool. and its got a 30 day trial. $70, but its not limited up to the trial end.
my only experience on advice is if you define a backup set, it goes through the motions, but doesnt actually do anything (assuming theres something to backup, there will be a total to do), delete the backup and make it again. it simply may not work from the start, so you wont be any worse for it. do a small test first... I've only used it with the amazon cloud drive, and files arnt online emediatly after upload all the time.. so if you do a backup test, wait a while before you do the restore test.