Checksums so I don't backup corrupted data and never notice. Instant, unlimited, zero-weight snapshots. You'd be surprised how often you use snapshots when you

Checksums so I don't backup corrupted data and never notice. Instant, unlimited, zero-weight snapshots. You'd be surprised how often you use snapshots when you have them. A couple weeks ago I screwed up a save point in a game. Instead of just living with my mistake, I rolled my Steam directory back an hour. Transparent compression.