Be prepared to update your kernels and tools often and independent of your vendor. Btrfs-progs will likely need to come from the git repo, so building your own packages for distribution around your production nodes will probably be necessary too.
A word of caution: do not run btrfsck without consulting the wiki and mailing list first, and hopefully knowing exactly what you are doing. There are situations you'll encounter which do not require btrfsck to repair (but rather, other tools instead), and it will potentially make a recovery less likely.
FWIW, I have been watching the list for years, and reading regularly for about 6 months trying to get a sense of stability with respect to the features I want.
I would not put btrfs in production yet. Though, likely soon.. I'd guess another year or so.