Use it here on my Nexus 4 with ART. Absolutely love how it's stock+ It has an awesome feature called "Hover" ( if you don't know what that is, search for PA Hover and click on the video by Chris Nacca. Plus it has built in optimizations which make it absolutely fly. It has a weekly release as well and it has a very intuitive way to edit quick toggles. Also running Franco Kernel so battery is great as well. Edit- one thing I forgot to mention. The official ROMs are Nexus only.