Two thing to watch out for when listening to the G70 sounds........

First, in Menu->Utility->Startup make sure that 'Extended' is ON, otherwise you'll be listening to a very restricted set of sounds (pretty near all the sound from Roland's previous arrangers are in the G70, if sometimes under a different name or buried at the back of the list pages).

Secondly, turn off the MFX effects section and audition the sounds without an additional layer of effects (get to hear the basic patch - they use the Enhancer way too much for my tastes!) by Menu->Utility->Global and unselect the Upper1 MFX Link.

And, OK, thirdly (our THREE main weapons are....!) turn off the mastering tools EQ and Compressor. I feel these should be added only AFTER you have got the machine pretty dialed in and used sparingly.........

Oh, and of course (OK, OK, our FOUR main weapons are.......!) make sure you are monitoring the G70 through a STEREO rig, the bigger and fuller, the better. If all the store has is a mono keyboard amp, ask that it be plugged into a stereo PA (that's what you'll play through, after all!) or if they can't, use the finest headphones you can get your hands on........