We use SolarWinds for everything. One of the main reasons we use it is for remote support. We have a desktop workstation added to multiple clients' sites. Whenever any problem happens, we just dial into the client machine via the remote support tool of the RMM. We then log into the client machine and resolve that particular issue.
We also use the antivirus that is provided along with the RMM setup. The antivirus policy we created depends on the client's requirements. We deploy a particular antivirus on the client site. This tool is the prime use of the current RMM.
Along with that, we also use patch management tools that actually deploy the patch to all the servers and to the client machine. We use a backup manager so whenever we need any particular server backup or any particular folder, we deploy this particular server instead of the backup, and start the backup for them.