I've unlocked the bootloader and rooted running BlissPop, a CM12 based rom and it's awesome.
I had flashed a stock Lollipop rom about a month ago, but LP has been having a ram management issue for a while now.. so a lot of the LP roms have had this issue where sometimes you hit the home button, and it redraws the home screen.. as though the homescreen and widgets were released from memory by the load placed on the RAM by other apps.. so every now and then, hitting home meant a slight 2 second delay - which was usable. It just didn't feel snappy.
Some of the newer CM12 based roms have fixed this issue.. it's very very snappy.
You guys who got the OTA to the proper stock 5.0.2 - are any of you experiencing the home redraw thing? It might happen after a bit of use, once you've run a bunch of apps to tax the memory management a little. Chrome used to cause this for me a lot before. Apparently Google is working on a fix, as this bug affects a lot of LP devices.. I'm not sure if the fix is in your OTA already or it's coming later in 5.1 or something?