MicroATX boards I don't like but it does have plenty onboard for just about anyone's needs.
This reminds me of an old Asus slot 1 board I have for my Pentium II. The vertical slots however modular adds more expense to the CPU board. It does of course have a greater lifespan over the non-upgradeable AmigaOne if upgrade CPU boards are available for it. Even for those with Macs, a dual G4upgrade path is available, so it may materialize for the Pegasos.
Even though this is very similar to the AmigaOne in function, I think many will stay away from it primarily because of the MorphOS and favor OS4.