I've moved this to Combo Organs as that's what it is.
Alas, Keyboard Player magazine closed down just before I got to do the review. I've played it a bit now and though it can produce some great sounds, it does take a bit of 'driving' to access all the voices. You can store banks of registrations and then save these banks to USB stick, so that's the key to live performance with the organ. The Hammond sound is good, not 100% convinced about the rotary sim, but it's not in the same league as some of the better clones. If you need two manuals and all the extra goodies that the 350 offers, there's nothing else quite like it, but you have got to need and want all those extras!
Full spec and brochure is available on most official Roland websites.