Someone is giving me a Kawai E650 Organ, contemplating getting it. Need advice from experienced!?

Does anyone have experience with these? How do they compare soundwise to a hammond? Will they/this specific model work for blues rock? I.E Spencer Davis Group, think of the amazing organ sound heard in Gimme Some Lovin'. The heaviest sound I would use is a Deep Purple organ sound. I listen to a lot of Blues Rock from the 60's and 70's and alot of Sam Roberts and Wilco.