Gene - while I'd never ever suggest a modeling amp over the real tube deal, our keyboard player has a Hammond B3 and Leslie at home, but he gigs with a Roland VK8-M and likes the sound as do we. Sounds very good indeed and with a Ernie Ball volume pedal and all his cables fits in a suitcase.
Our backs thank him for his decision. It's not the same as a Hammond, but in the right hands the Roland sounds great. Waving your hand over the D-Beam for the Leslie speed control is also fun.