That was my first ITX build ever; didn't have any problem except that i had to switch the included rear fan with a thinner Cryorig, otherwise the cooler would interfere with the blades :(. Kudos to cryorig for making think 140mm fans!
I could probably have done it without at least one fan on the top, but since they're all pwm i can have them on super low noise mode all the time and keep temperatures on check, which is great ! Too bad you can't use GPU temperature as a reference for fan control, maybe in newer platforms they introduced it i don't know, but they should, cause data it's already there and it's very useful!
Also took the chance to do my first delid/relid and it went easy and clean. Temperature drop was around 15-20C for the CPU in full load
Didn't bother to do that on GPU cause I am happy with the temps and noise level anyway. No need for overclocking the GPU for the games I play and also cause some are very sensitive to overclock so it makes system unstable.
950 Pro was probably a waste of money, going back in time i would probably choose a higher capacity sata ssd but it's not like I'm suffering hehe.
Temps (with ambient @26C)
CPU idle 30C max 55C (very silent rpm curve, maybe 50% of their maximum for intake (x2) GPU idle 40C max 76C (fans spinning at 700rpm intake+cpu(x2+x1) and 1000rpm outtake (x1)
Very happy with everything!