I run it on a high end smartphone (Sony Z3) and a decent tablet (Nexus 7 gen. 2). Lately it hangs, it's slow, it crashes, and it feels all around unstable. I don't know what they're doing with it because it used to be great. Ever since they put out Lollipop things have gotten slower and buggier. It sure looks pretty but the last version of KitKat was solid as a rock compared to this. Anyo else noticing this?