I am a happy user that switched from Crashplan to Duplicati. This program has all the features I need and it is less resource intensive than Crashplan. I like having the choice of storage providers as well as having an external drive backup. While testing Duplicati, I had an issue with Crashplan locking the sqlite database and causing errors. I posted to the forum, and had a solution within days. I sent in a donation to help support this project.