I'd had a few friends who've used them and gotten good results, so for my first movers, I decided to give them a try.
Nathan and Mike were fantastic; they got to my place as soon as they could, and navigated the elevator and long set of passages out to the loading docks. When they got to my new place (the third story of a house), they tore into moving like animals. These guys really knew how to work! We had to encourage them to take a break to hydrate or drink some Gatorade. In the span of three hours, they had all my boxes and furniture transported from one hard-to-reach place to another hard-to-reach place.
For the price, they're just amazing. If you need a company, hire them now!