Welcome to Hubitat.
I am struggling a little on how to answer your post... Part of me wants to say "Geez, not a single nice thing to say about Hubitat?" Come on, now. I am sure there is something you like about it, right?
As for the USB port spacing... Since you're using two USB dongles, I assume you're not in the United States. Here, we only use a single dongle that handles Zigbee and Z-Wave. The US dongle does not handle Z-wave frequencies for other countries, which is why a separate Z-Wave dongle in shipped. What is amazing is how quickly Hubitat added shipping options for countries all over the world. Compare and contrast that to ST which is still supporting relatively few countries officially. Winner - Hubitat!
BTW - the actual black hub that Hubitat ships is a small Linux computer. The form factor is what it is. This helps to keep costs down versus a custom hardware design. Thus the USB spacing is fixed.
As for ActionTiles - that is a ST only solution and relies on the cloud. Hubitat's focus is on local automation and control. Many users are fine with the Hubitat Dashboard, SharpTools, ported SmartTiles, Google App, Alexa App, HousePanel, etc... There are plenty of options available to users. (BTW-The ActionTiles team has decided that they want to stay focused on SmartThings for now.)