A counter opinion from someone that DOES own a G70...

Yes, the G70 guitars are very good, and the amp sim can make them even better, BUT... compared with a T2 or S900, if electric rock guitars are going to be your main thing, and you want to have great electric parts IN THE STYLE, and great basses too, Yamaha's guitars are better, IMO (plenty of user demos and factory stuff out there for you to make your own decision, in fact).

This is not to say they are necessarily better arrangers, but in that particular area, I'll definitely give the nod to Yamaha. The Mega voices in their styles have much better articulations. Me, I use a guitarist, so it isn't the deciding factor in an arranger, but I have to admit, were I solo all the time, the T2 would be a much more competitive arranger even with the lack of a 76. Not necessarily my final choice, but it WOULD get more of a consideration than it gets now...

The harmonizer universally gets the nod over Yamaha and Ketron, matched only by the Korg's.
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An arranger is just a tool. What matters is what you build with it..!