i also
clean flashed my nexus 5 with factory images this weekend, wifi bug still present, GSam Battery Monitor showed 9% Wifi battery use overnight while wifi was disabled, had to turn off "Scanning always available" to fix that, flashed TWRP 2.8.1.0 with SuperSU 2.16 and ElementalX 2.03, though while adb pushing all my data back to sd card from recovery, permissions messed up and data wasn't readable in the OS, known bug in TWRP i suppose, fixed it by flashing a permission fix zip, rest is good, seldom app crashes and some app incompatibility issues, although Google Fit seems to be a battery hog..
My overall opinion, same as it was when first developer preview was launched, didn't liked the app drawer on white, battery isn't that much improved compared to KK as it was described in Google I/O (same for me), Camera is slow (takes a split second after it focusses to click the pic, bug was not there on KK), and overall UI seems much slower than KK due to longer animations (have reduced every animation to .5 in developer options, still feels less fluid than KK), the best thing for me, notifications on lock screen.
(though i miss the lock screen widgets), still feels more like an unfinished product.