I can share my experience with MIDI and Catalyst 60. I've bought this amp because initially I didn't think that I wanted to use MIDI at all. But after some time two button switch was not enough and I started to investigate options. I've had Ampero Switch(~20€) and I think it's decent product so I've bought Ampero Control (~115€). Ampero Controll has Bluetooth, USB and MIDI outputs. Then I started to think how to connect this to Catalyst 60. After some time I've tested and confirmed that two these are working options (NOTE: money wise it doesn't make any sense, if you need MIDi just buy Catalyst 100, it's little bigger but any additional MIDI setup would be probably more that price difference between Catalyst 60 and 100) :
 
	 
 
	- 1st option: CME WIDI Uhost (~65€) - this is BLE (Wireless) MIDI USB Host mentioned earlier, small box. It's connected to Catalyst 60 using USB-C <> USB-B cable. Because of that it need additional power (simply USB-C charger) because  USB-B doesn't provide power delivery. It uses bluetooth for Ampero Control connection. Pros: it works, for home setup is probably enough. Cons: you need additional USB-C charger, and if Ampero Control is connected to WIDI Uhost you can't change settings of it (because you change MIDI settings of Ampero Control using phone application and for that you need pair phone with device via Bluetooth). This is probably more problem with Ampero Control that WIDI Uhost, any other MIDI controller which doesn't demand Bluetooth for configuration doesn't have this flaw. For additional 55€ you can add  CME WIDI Master which you plugin to Ampero Control. It will make "virtual" cable between Ampero Control and CME WIDI Uhost and you will have possibility to use phone application and amp connection at the same time. But this is of course extra cost.
 
	 
 
	- 2nd option: Disaster Area Designs Micro Ghost (~100€) - I would recommend this option if you use pedal-board because it's powered by the some power cable as any typical stomp box (9V, Boss type). This is wired USB host so you use USB cable to connect with Catalyst 60 and MIDI cable to connect with Ampero Control (or any other MIDI controller). Pros: it is plug & play, once you have proper cables it just works. Cons: more expensive than CME WIDI Uhost.