Big plus' for me are the speed you can change the speedfeed to lid and vice versa (literally between points if it starts raining), and the speed and ease to strip it down to clean. Only downside I've found compared to the rotor is the rotor is more effecient on its batteries, but thats just going on what the brochure says.
Literally can't fault mine so far, going to play with reballs this weekend which were a nightmare in my rotor, if it feeds reballs well I'll be even more impressed than I've been so far.