Yeah, the -M command is wonderful (super handy for ignoring minified files that you don't want to see results from, etc), and also great is the -g command (eg `-g *.cs` and you'll just search in files that have the .cs extension).

Also the fact that it is a standalone portable executable can be super handy. Often when working on a new machine, I'll drop in the executable and an alias for grep that points to rg, so if muscle memory kicks in and I type grep it will still use rg.