I was riding my cafe racer with aviator google. Off course you look cool but be mindful that you are as unsafe as you can be. At any rate, make sure you find a pair that allow pereferical vision. They are still creating a hot/sweaty pocket around your eyes on hot days, which is not too comfortable.
And of course, open face helmet will give you the opportunity to walk the road to look for your jaw. Realise that any forward impact on your face is like not having a helmet at all.