For cool looks only you can decide what you find cool.
For ergonomics no one here knows you better than you. Try it. Of you dont like it flip it on the ee.
Always found grips to be useful. However the M-Lok AFG seems to be a little small for my hands, and I don't even have large hands. But I am a big fan of the AFG2 though, feels and fits real nice. Think I'll buy me the adaptor so I can use the AFG2 on my M-Lok handguards.