I'm a big big big fan of GCC!!!
The shop in South End is very small with maybe only 2-4 chairs inside. There is some outdoor seating and the steps walking up to the store front where people can sit and enjoy their ice cream.
They have some great flavors: they have your regular flavors such as vanilla, chocolate and strawberry and then some fun flavors like dunkaroos, and my favorite, salted oreo. Once in a while they will do a collaboration with a brewery and have a fun ice cream.
They offer kids sizes - always a plus. They also offer ice cream flights which is a really cool way to enjoy multiple flavors. I wish they served the flight differently though. They put them all in one cup. They end up melting together which can be a little weird. I think they should serve the flight like you would a beer/wine flight, separate.
I love that we are walking distance to this shop, but if you aren't there is plenty of parking nearby.