Great case to work in - even with an ATX PSU.
I didn't read the manual particularly well and almost missed things like the GPU support. Cable management details leave a lot to be desired, even when using minimal PSU cables - I don't recall seeing any tie down points anywhere. I guess they presume you are using SFX and stuffing the excess length in the PSU housing area.
Also, I strongly endorse benching the entire setup BEFORE you install in this chassis just to confirm everything works because it really is a tight fit and if you have big hands, good luck working in there after the fact.
I messed up the size of my PSU, thought it was 150mm long but is actually 160mm long and while I don't recommend it for long term use you can remove the ssd mount right in front of the psu area to give some extra room, but be careful, as you are also removing multiple points to secure the GPU frame, and if you are lazy with cable management, you'll have a rats nest down in with the case fans and GPU fans.
I used silverstone's NT06-Pro v2 cooler in this but after having worked with that cooler in this case, I'd strongly recommend something like the Cryorig C7 Cu just for the sake of being able to install it on the motherboard before the motherboard goes in the chassis and the TDP is about the same.
If you do use the RGB control box you'll have a bit of a challenge finding a place to put it in the case, especially if you aren't using a SFX PSU. I had a look at placing it even though I wasn't using it and the only other place I could find was in the GPU chamber, if you're using SFX there should be plenty of room in front of the PSU to keep it secure.