Looks intriguing, but also looks like it has unnecessary language for no other reason than Gunn never grew out of being a teenage boy and thinking bad language makes him seem cool.
Unnecessary language (if they include it in a trailer, that means it's probably going to be a lot worse in the actual show) really is a turn off for me, as is anything that doesn't add to the plot or story but just tossed in because they want it "more adult" (which to me just makes it far more juvenile instead...sort of like what PM season 1 was...juvenile. Unfortunately a lot of people seem to like that approach).