I have definitely had a different experience than everyone else, I guess. It's not terrible for the price I paid, but with the 4.4.4 update, it's laggy as hell, with lots of touch screen issues. I know there are fixes and I know I could roll it back to one of the more stable updates, but frankly, I haven't felt like putting in the effort. Part of the reason I bought it was the promise of solid performance and timely updates. Add in the fact that I had to root it and flash the 4.3 update manually to even get OTAs working, again, and what I am left with is feeling like I should have saved my money and bought a Shield tablet or bought the 2013 Nexus 7, instead. As of now, I just use it in my Perk farm until Nvidia finally releases a Lollipop OTA that I really hope will address the multitude of performance issues I have run into.
Shame, really, as I love the hardware, but the software in the latest OS is just garbage.