I know I am late to the party and hopefully can add something valuable to this conversation. Apologize in advance for the length.
There is no single answer to your question, it all depends on what you do with your edits. On the simple side, mostly for fun or quick inspection videos I also use LumaFusion on my Apple Ipad Pro. I must say, that program is capable, easy to use, fast and portable. I can edit on the go, sit on vacation and post fun videos, do just about anything you would want to produce fun videos. So if that is what you are doing, and your input files are not that big (at the mercy of the Ipad storage capacity) for fun videos or short clips of interesting flights that is a great product and I have cut many videos with it.
That being said for most of my commercial work I had to learn how to use the features in Premier Pro in order to get the quality video you need to impress your customer. Of course that program can do just about anything and when editing H.264 or H.265 with a pretty decent user experience. However you do need some decent equipment, and that is unfortunately, part of the answer to your original question. I started off with a home built computer, I5 7600K with 48 gigs of DDR4 Ram, a Samsung SSD and a EVGA 1060 video card. I spent most of my money on the huge curved Dell monitor which was well worth it. Using Premier with standard 4k video was "ok", nothing to really write home about. I would often get choppy video on playback during editing and no matter how I tuned the system it never was smooth. I would have to periodically stop the playback, wait for the cache to catch up and then start it again. Transitioning from clip to clip was the worst. So with that in mind you will probably not love the Premier Pro option unless your willing to spend more money on the hardware, or suck it up because it will do the job and you can do just about anything, as long as you are proficient at searching YouTube for tutorials.
My experience with Premier Pro was excruciatingly painful when I needed to edit high resolution Apple ProRes 422 HQ and Apple ProRes 4444 XQ, not to mention the impossible task of editing video in CinemaDNG. I film most of my promotional commercial work with the
Inspire 2's and Zenmuse x5s. At times that became almost impossible to stomach in Premier Pro with my hardware setup. I then took the plunge and tried DaVinci Resolve because many on-line video comparisons had this product kicking butt over Premier Pro with the available resources. I installed Resolve and it definitely improved the experience and made high resolution possible on my hardware. Not great mind you but possible. The only thing I didn't like is that I had to use DaVinci Fusion to get some of the effects that I wanted which were possible in Premier Pro directly.
So back to the hardware for a solution. What ultimately solved my problem with the editor was something I already suspected. I upgraded to the EVGA 1080TI with 11MB on board memory (needed a liquid cooler), a I7 8700K overclocking to 4.7GHz, and had to get a new motherboard.
So I went back to Premier Pro because it had more features built in. The down side of Permier Pro in my opinion is the ongoing monthly fee, I don't like that at all, and to get even better effects you need to use other Adobe products. This is a very frustrating problem.
Fast forward to this month actually. I downloaded and installed the new Resolve (15) and started using that product and soon found out that by buying the Resolve 15 Studio ($300) I actually received all the Fusion stuff I so loved in the Resolve product. So I am back on to Resolve because Resolve to me is easier to use, much much faster than PP, the workflow is better, the new fusion work flow is amazing and I have yet to even scratch the surface on that, and for $300 you get your license and that's it.
One last thing, I just did an upgrade that had the biggest impact of all for me. One thing that will always hold yo back on any editing software is the size of your input files and when you are editing Cine or Prores those file sizes are huge. I shot 15 minutes of video last Friday and racked up a whopping 150GB of video on my CineSSD. I was complaining to my son (my computer guy) that working with files this huge and moving them around or in and out of cache memory in these programs is terrible. He told me that my new motherboard that he told me to purchase had the ability to accept the new NVMeSSD. I asked him what the heck was that and he told me it was a new class of SSD's that are mounted on the mother board if you have the capability and utilize the ultra fast "highway bus" for data transfer. So I purchased a 1 TB Samsung 950 PRO M.2, installation was easy, plug and play. It is now dedicated to video editing. I move all my files for a project and edit off of this drive. When done I archive the project to another storage media. There is nothing else I can say about this except that it's truly amazing and probably one of the most measurable and significant improvements I have made to my editing experience. The sequential read/writes of this SSD is bench marked at over 2,222 MB/sec and trust me, it does it. That's 2.2 G "Bytes" per second, incredible. I often wondered if I had left my original hardware alone and upgraded to this SSD first if that would have solved my problems.
Conclusion. I have settled on the hardware described above and DaVinci Resolve 15 for all of my video editing needs with the exception of the quick fun stuff I still use LimaFusion for, and I do love that product also. It's just not capable of handling the type of high end editing that I typically need to do.
Hope this helps