My only real complaint with my Moto X is the screen. If they stay with AMOLED in the X+1, I hope they use one that is as bright as the one in the Galaxy S5, and I hope they also offer screen mode options like the Galaxy S5. If they don't do that, then I'll probably pass. I've already put my SIM card back in my iPhone 5S and have stopped using the Moto X. I just can't stand the dim screen and the over saturated colors. Everything has a red tint. I'd prefer they put an LCD panel in it, but I doubt that will happen.
I think the screen is great but to each it own I guess.