Diki, it comes down to preferences. I don't like the Roland sounds and programmed rythems, period. I've listened to multiple demos, and I don't like what I hear. You do, and that's fine. I also don't like some of the features.
I bought the G-70 because I had a problem with the Ketron organization and business practices, not the equipment. My expectation is that major time is required and the best outcome is a product that his sub-par, at least for my tastes.
I made a purchase mistake...so what? I've wasted enough time. Time is in extremely short supply. I make time/value judgements every day. If I wanted to reduce the learning curve, I'd get a Yamaha, which I dislike (ALL Yamaha arrangers) worse than the G-70.
It's all preference. I'm not right for anyone else, but I'm right for me.
That's my story and I'm sticking to it!
R.