Btrfs has begun to gain some momentum in replacing ext4 as the default filesystem of choice for a few distributions such as Fedora Core 16. It is experimentally available in a number of other distributions (From Wikipedia: openSUSE 11.3, SLES 11 SP1, Ubuntu 10.10, Sabayon Linux, RHEL6,MeeGo, Debian 6.0, and Slackware 13.37). I'm certainly not ready to convert all my workplace servers over (my file system choice is generally conservative), I'm considering using it at home and on select non-mission critical production machines at work.
Btrfs brings a feature set that is similar to ZFS in many ways. I can understand why this would be desirable in an "enterprise" environment, especially with systems that focus on storage delivery. But how is this same feature set useful for end users? What advantages does Btrfs' feature list give me on machines whose primary function is not the presentation of storage? What advantages does it give me on my laptop?
Outside of enterprise storage, why should I bother switching to Btrfs from the tried and true Ext filesystem?