Anti-MSG propaganda actually comes from Asian racism, and was born out of the idea that Chinese food with its MSG was causing headaches and other health effects that were entirely made up. MSG is perfectly fine for you, and it makes a ton of things even tastier. I use it all the time in home cooking.
I use MSG in some limited applications, but I always prefer generating glutamates via general cooking techniques. I think there's a layer of complexity that's lost when MSG is used in lieu of browning, for example.