I don't really know the difference between a good dry cleaner and a great dry cleaner, but I do know a bad one. Cambridge Cleaners is certainly not a bad one. Prices are comparable and listed on the store's Website. It's not the cheapest, but it is a better deal than many of the other dry cleaners in the immediate area. I got a suit dry cleaned ($5 for both the jacket and pants) and six shirts laundered ($12). Both the dry cleaning and laundry were ready by 4pm the next day. Same day is available for dry cleaning if you get there early enough.
When you walk into Cambridge it looks the same as every other dry cleaner I've been to. A counter to drop off and pick up clothes, a big automated rack filled with clothes, and a view of all the machines in the back. But it doesn't hurt that the staff is very nice and the registers are up to date with scannable printed tickets.