Boston is the coolest city ever, i went there for a 5 day field trip around the city the whole time, and the spots were AMAZING, so smooth, everyone was mean, but like you could tell that they wouldn't care about you riding.
But i'd be walking down the street and be over a little too far and people would be like "HEY WATCH WHERE YOU'RE WALKING YOU MOTHER FUCKING SHIT HEAD!" and stuff like that... so beware.