I'm a longtime Premiere user, but started playing with Resolve when it hit version 12. Two things about Resolve: you need their hardware if you want full screen output on your DCI 4K production monitor. The Lite version won't do 4K renders. It's limited to 3.8K renders and your 4K footage will be letterboxed. Their Intensity Pro 4K card only can output 3.8K. I called them on this and they admitted I would have to use one of their high end products such as Decklink 8K if I want 4K 60P output for my 4K theater projector.
I explored Resolve because Premiere was struggling with 4K footage on my newly built dual Xeon E5-2667 workstation with 128GB RAM and Quadro M6000 GPU. The system has all solid state drives, so no bottlenecks, but dropped frames constantly with only 12% CPU utilization and 1-2% GPU utilization. Unfortunately, Resolve wasn't any better.
Now that I'm working with
Phantom 4 Pro 2.0 footage, which I learned is high profile h.264, it's much worse. Hundreds of frames dropped in a ten minute playback. But at least I can edit and render out HEVC, which plays on the in house Oppo UDP-203 out to our DCI 4K projector. I must say that the footage looks better than it has any right to for a $1500 drone. I've gotten shots that look as good on a 12' screen up close as I've seen in Hollywood movies on Blu-ray and even Ultra HD, at least resolution-wise. It lacks some of the 'creaminess' of the Sony F65 or the ARRI cameras, but for the money, it's damned good.
Nice to hear they dropped the price for the full version to $300. It was a grand when I first looked into it a few years ago.