I first saw posts about this place on Instagram, so I decided to drop in, since it seemed cool and unique :) They sell lots of different marshmallows, the 4oz packaged ones being in the $6-8 range and the bowls around $6, a pretty reasonable price.
The marshmallows are quite filling and are really fluffy. The store also has a warm, cozy atmosphere, and I recommend going there if you like sweets.