The only RGX I played extensively is a cheap used one I picked up for one of my students. He wanted a shorter scale (you know the RGX is 24.75", right?)
The low line model wasn't great, but it IS great value for money. The Yamaha Pacificas I have are cool, and the RGZs and RGXs I've tried at stores have been nice guitars. If you like how it feels, go for it. Yamaha's quality at any given price point is up there with the best of 'em.