How is the selection of craft beer? I mean neipa, wild/sour beers, barrel aged stuff ? Is this a good place or there is a better selection at Old Port Spirits and Cigars ?

RSVP has a wide selection of beers spanning all styles from many countries. They also have a section dedicated to Maine/NE beer. Given they gave a good selection of American beer, it goes without saying that they'll have all the flavor bombs including your typical hazy IPA (yawn), sours, and high abv barrel aged beers too. That being said, pick up a rauchbier from Bamberg, a true lambic from the Pajottenland, or even a low alcohol English bitter while you're there and enjoy the full spectrum of beer out there in the world. Cheers!

Fantastic. Go in, take a hard right past the wine all the way to the wall.