I've read a few bad reviews about this product...and it was almost enough to convince me to pass on the purchase. I'm glad I ignored them. First off, the instructions are for garbage. It helps if you already know how to make donuts.It's a simple design. It heats oil, has a hopper that drops dough into the hot oil, and a timer that flips the donuts. Pretty basic. We got the single row so we would not need to stand around and watch the donuts and prevent the dough from bumping into one another.Also, the machine needs to be wired for 30amp, single phase. Very happy with the machine, will probably purchase another this summer.