PA 3+ is a decent ROM, it feels solid and fast. However, it, like CM 10.1, is based on Android 4.2.2, and like CM 10.1 it has the same two irritating bugs as Google's own 4.2.2 Nexus 4 factory image which Google refuses to fix, for whatever reason.
Those two bugs of course are:
- Nexus 4 stops responding to ARP requests when screen is off with wifi on, and
- Bluetooth kills wifi on the Nexus 4.
We suspect that Google hasn't fixed these because they simply are unable to fix them, along with all of the other wifi and bluetooth issues in 4.2.2. The best we Nexus 4 owners can hope for is that when Google releases Android 5 Key Lime Pie in May, these well-known problems with the N4 will have been fixed.
But don't hold your breath. It has been 179 days since the wifi and bluetooth problems with the Nexus 4 were first reported to Google: not exactly confidence-inspiring.