We are still working with Sophos UTM, so I can confirm that we have not switched to something else.
I have been working with Sophos UTM since 2018.
The most valuable features in Sophos UTM are Mail Protection, Web Server, advanced endpoint, and the servers. Our systems are silent, secure, and we don't have many problems with security policy enforcement.
In terms of setting rules to guard the organization, especially on the network, we can set those rules, and through Sophos Central, we are able to see the equipment that has been registered and all the reports on the performance of each piece of equipment. For the endpoint equipment, there are close to 300 people using Sophos UTM in my company.
We have five administrators and around 10 servers, so we have advanced server protection that we are using.