Stable, and I have not seen any screen issues mentioned previous using the Ze kernel. I keep my cores frosty, underclocked, and overclocked (that's all I need) and the device is responsive and efficient. I would use as a daily driver if get the kernel/baseband wakelocks ironed out.
I had one weird glitch with clipboard selection being offset higher on the screen, but corrected itself when I dropped dpi (below 400?).