The tray works pretty well for pedals.
I mounted a Petterson tuner facing towards the front, Sentry noise gate behind the tuner, LPB-1 boost, Joyo Dual Vision, NUX tape echo and the NUX amp academy on it with velcro, mounted an angle on it for the tuner.
The holes in the tray did assist for some neat cable management.
Got a pedal baby sitting under it with velcro between the amp and the tray, sits stable as a rock and also gave ne enough space to put an AKG wireless mini receiver beside the amp.
Only thing I couldn’t fit in was my DC10 power supply, ended up mounting it at the top of the rack case.