This was my first build. It was a complete Amazon Prime Day build and there were some amazing deals. I was able to pack a lot of power into this thing for the price. It is mostly used for editing and work. Coming from my trusty 10 year old Sony Vaio with an i5-3210M pegged at 2.5GHz, this thing is absolutely lightening quick. Having multiple NVMe SSDs - one for OS and programs and the other for current work files, scratch and cache - really improves workflow, speed and ease of keeping the temp files clean. Yes, I know the GPU is in the second slot, but it covers up all the eye candy on the board and I didnt want it baking my SSDs. I ran a couple GPU benchmarks in both slots and came up with no difference :) I would recommend any of these parts to anyone. Now time to build the wife's Prime Day R7 2700x (similarly spec'd).
EDIT - because I couldnt resist, I sold the 9700k on ebay for more than I paid ($340), updated to the 9900k for $449, and changed to the Aorus 2060 super open box for $399, recouped the 339 on the 2060 and vertically mounted the GPU.