I like that quorum is constantly innovating and evolving. As with most backup software they continue to add features and make improvements without hesitation. Some of these improvements are not fully realized at first but eventually become very useful. The free version is limited and if you have more than 3 devices it becomes quite expensive. They do also charge an ongoing service fee unless your backups exceed a specified amount every month. We use Quorum as our primary data backup. Our business is small and we need to be able to recover quickly from disasters. Quorum has enabled us to restore quickly and efficiently since implementing. We are able to easily see what was backed up and when. The ease to use interface makes it very user friendly which helps me manage my backups from anywhere using remote access with minimal training required! Nothing really I dislike about their product but we would like more features added such as incremental backup/restore option so you can do selective restore only instead of all at once if needed. We have been able solve our data loss issues since implementing quorums products into our environment without failures due to hardware problems etc.