Beaches and Cream is a TINY restaurant, I think there are maybe 4 or 5 booths, about 4 tables and then a counter that seats about 15 people. B and C does not accept ADR's (unfortately) and every time we've been there--4-5 times, the restaurant was mobbed with waits around an hour. The food is really good, especially the burgers and milkshakes, but if you are using it as a lunch break, you may have a long wait. They do have a take-out counter and a few tables outside. The take-out window can have long waits too and the waiting area is very small.
Beaches and Cream is a favorite of mine and I highly recommend eating there, but be prepared for possible long waits. ESPN Club is a nice lunch break from Epcot, the food is good and it's just as close as B&C, if not closer. Unless there is a sporting event, it's usually not crowded for lunch. Hope all of this helps!