[mdip]

Caveat: I don't use RAID[0].

In about 4 years of running it on a couple of servers and countless virtuals/desktops, I've never had a reliability issue that was directly related to btrfs. I do not have my servers plugged in to UPSes, I have the occasional "shutdown due to power loss". The only time I've lost data has been due to cable disconnection in my hardware RAID array, and even then I was able to recover a substantial amount of its `btrfs` stored files.

[0] Well, not filesystem-provided RAID; I have LSI controllers that provide the array to the OS as a single disk.