Hi,
I visited a G70 presentation and can say, it sounds much much better as the VA 76.
The drums are more brillant (well, the Tyros drums are a little better), the other voices will sound natural, the styles aren't boring (the first versions were equipped with old styles, and the presenter used the last software version with all features, but some bugs, they fix it before selling).
There are some Tyros features, as the voicing feature (no more one transposed bar chord) or short endings (Fill in, crash and that's all instead a long solo).
Together with Tyros, the G 70 may enhance your sound.

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Regards
RF