I have to be honest: part of the reason I’m tempted to build my own case is I want the whole thing to be fanless. Between my other post about the picoPSU and the board itself, I think it’s possible.
With this case, if I did go with 3x 2.5“ ssds and 2x 3.5” hdds, for maximum heat distribution I might put them in this order: 3.5, 2.5, , 2.5, 3.5. If you look closely at the case, there’s a secret _additional_ 2.5” slot above where the PSU normally goes, so I’d use it for the 5th bay, just to spread things out even moreso.
But given my goal of ”no fans,” this case dedicates a lot of room to the fan at the end, room for a SFX-sized power supply, and a motherboard with a real heatsink. I think a custom case would be MUCH smaller to accommodate the same, but it’s really just a matter of time and priority. Anything I build will work, but …