I've had some occasionally odd screen behavior. I had to send it back for repair because the phantom touches made it unusable.
Now once in a while an area near the edge might not respond. It's usually very minor.
Despite that I am very happy with it. There's more development going on so there are now four kitkat roms that I know of.
It's very fast. Apps, home screens (Nova) and menus don't hesitate. I'm coming from an Xperia tablet Z. We also have a nexus 7 and an lg g pad 8.3. All are good. I like this one best.
I also like the proprietary charging port. It's sturdier. On my Z the plug would get the slightest pressure and start to bend or fall out.
TF701T - Vanir/Commotio / Xperia Tablet Z - AOKP 4.4.2 / HTC One XL - CandyKat