I'm having a similar problem.

Your experience has been very good in FCPX, which is great to hear. I'm more concerned with the work just getting done than which product ... which is why, on the de-linking of SpeedGrade from PrPro in the 10.x builds of 2015.3/4, I downloaded and have worked some with Resolve.

Awesome program for full-time graders, and some find the Editing "mode" of Resolve quite adequate and intuitive. Me, not so much, actually. As, I've been told so many times that Mac OS's are always more "intuitive" ... yet when I've sat at a Mac, at times I haven't even been able to start programs ... seriously.

I can get around on a PC quite nicely, thank you ... different strokes are "intuitive" for different folks.

As you find FCPX "intuitive".  However, the assumption that what is intuitive for you and some of those you work with is therefore categorically better and more intuitive for everyone ... that's not a foregone conclusion.

To me? Apple ... what a bunch of kindergartners. Completely paranoid of anyone else touching let alone "using" their stuff ... such as say, ProRes. Really professional behavior to completely deny the utilization of a major codec because of the OS of other potential users. The last couple OS releases have been a pain in the backside for so many vendors ... it was a huge topic of aisle-way discussions outside the major pro-video equipment vendor booths at the last couple NAB's. Used to be, they'd get plenty of time to test a new OS before release, and when they found problems, someone was seriously interested in both listening & helping ... and seeing if they could fix something on Apple's part before roll-out.

Now ... short notice times, poor attitude on the part of the staffers they attempt to work with ... and this is from folks that are about as Mac-centric as you can get. All noting they get better relations with Redmond than Cupertino these days as far as OS stuff. Shaking their heads, seriously feeling abandoned.

But then, with a CEO who seriously questions why anyone would buy a desktop these days ... right.

Major colorist friends are now teaching how to leave Mac behind, as for several years now there's been no significant increase in hardware horsepower in big Macs. None. Not even mentioned the last few cycles. So ... they're teaching how to build PC's running either just Windows or dual Windows/Linux OS's.

With all the multi-K and HDR stuff coming out, the old ... almost what, five year old basic mobo of the big Macs? ... hardware just can't tack on enough gizmos to keep up.

Kinda funny to watch the vids ... having to point out that gee, there's all sorts of calendaring options also in Windows ... who knew! So you can actually do most anything you've been used to doing, just the UI might be a bit different.

I'm rather disappointed in Apple, personally. Never used their stuff, but ... I do prefer stiff competition in the things I use. And Apple seems to be abandoning serious desktop computing. They used to be so cool with it ...

Neil