I recently got an H90. WOW!!! I am planning to add it to my pedal board, replacing my H9. Not having time and the H90 lack of Bluetooth / ios App has my plans on pause.
H90 is a little wider but pretty sure I got enough room to move the Expression and Volume pedals a little futher apart. Picture below is fairly current althought I did add a Disaster Area Micro between the switcher and the volume pedal.
I have a temple audio board and have a USB connection on the side of it. So I run my USB pedals off of a hub under the board (so I only need to connect one USB cable to connect to all of the pedals). It’s pretty convenient.