Ours had a dual soft-serve machine, and the quality depends on the source of the mix and how carefully the machine is cleaned and maintained. Our mix came from Fairmont and was probably comparable to Dairy Queen. There was also a freezer for the regular pre-made frozen treats - bomb pops, ice cream sandwiches, etc. - a shake machine, pumps for toppings and the rest. One person working the window, one making the food.