[Wlug] ZFS on Linux vs. BTRFS or stick with EXT4?

I'm migrating to new large drives and would lke to take advantage of a filesystem that has integrated data and metadata checksums. How well does ZFS on Linux really work? What is the current status of BTRFS? Which one would you trust your precious data to? I've been out of the loop lately... This would be a great meeting topic! "How to set up ZFS on Linux and/or BTRFS". Any takers?