Rolandlover,

The EXR series is more suited for sitting down and playing because it has the speaker system. It can accept different stles in the (3) Roland formats. I had the EXR7s and really enjoyed it. The USB is a useful tool and there are many on this forum that own the EXR board.

The GW7 doesn't have speakers and has more oriental sounds. The keys are very tiny too. It has extensive navigation screens to get to the source.

If you consider EXR - go for the EXR7s. It has the sound banks, along with style banks on the panel - the 5 and 3 do not - that is a pain in my opinion.

The G600 is old and I have no experience with that.

zuki