I got used to it after a while. I only use the sampler in it, and sometimes the durm machine, and sequencing those is alright. The only thing that bugs me is that you can't custumise the keys, and the functions of the alt and ctrl keys are reversed in Reason and Cubase, and I always fuck it up when I'm dragging something.
we also have the dr770 which we use quite a bit. studio vision pro is the main sequencer. the tone generator isn't used that much. our most used gear is actually the bass distortion pedal, the mixers and the patch bays!