11.1 is now out and it just keeps getting better. I'm giving it a real look. Right now the features that it is lacking I can mostly work around, though one shoot is heavily multi cam, so that's out.
I just did 1 hour 46 minutes of rushes using resolve and it's editing funcitons. Running a full tilt mac silver desktop and a RED rocket card for the RED footage it worked ok, but for editing, it's pretty rough and loads up quickly.
(1/2 my footage was RED, 1/2 70d) all in their native codecs.
What I found was you need fast scratch disks, fast graphic cards and open cl and btw: save the project every few seconds as you will get a crash with mixed footage.
The results though are good because resolve has nice footage rendering.
I also suggest buying film convert for resolve as it gives a much nicer look to the files, especailly dslr files, though film convert is somewhat buggy to load properly.
Actually, though I never edit fully in fcpX, since I was mixing 4k and 2k footage It would have been a lot faster for simple rushes type edit to use fcpx set for proxy media, then export a fcpXxml to resolve and then round trip back.
I hope blackmagic makes a good editorial program, but today, it requires too many workarounds to do anything complex.
BTW: I would never consider color grading in fcpX at least not for finish as it's rendering, look and system is way time consuming compared to Resolve 11.1.