[AT&T, Rogers HTC One X, Telstra One XL] benraf:
Hey guys, I just flashed the latest (12/23) CM11 nightly, having switched from CleanROM 7 (based on a T-Mobile Android 4.2.2/Sense 5.0 ROM) and before that CM10.2, which I stopped using after the dual core hard reboot bug appeared.

Here is my experience so far:

Cellular performance appears to be good and I have not experienced any drops. I have AT&T and I'm in an LTE service area; I have selected the "AT&T LTE (pta)" apn. I have experienced download/upload speeds on par with what I have experienced before, and I am able to send/receive SMS. Haven't tried MMS yet. Running the 2.15 hboot, as well as the 1.31a.32.45.16_2_10.141.32.34aL baseband, which I think is what's included in the ROM, but I'm not sure.

The ROM is at least as smooth as, if not smoother than, stock HTC Android 4.2.2/Sense 5.0 in the sense that the UI appears to run at 60fps in most places, but there are occasional slow downs and jerkiness. Notably, opening/closing the notification drawer does not appear to be 60fps about half of the time. Additionally, finger tracking (read: not UI framerate) is not as fast/low latency as on an iphone, but this has always been true from what I have seen both on this phone and on many other android phones, and does not significantly detract from the experience.

I experienced a random reboot about 3 hours after flashing CM11. I don't think this was the bug where one of the cores stopped working, since the phone rebooted into CM directly without showing the HTC loading screen and without needing a hard reset, and the OS was not slow after rebooting. I have only seen this one random reboot.

Wifi is dropping consistently. I had wifi working last night, but this morning I was connected to LTE and I could not get Wifi to reconnect without rebooting. This occurred again a few hours later. K4get reported a similar experience in the dev thread.

I set up Google Wallet Tap and Pay, but I have not tried it yet, since a report on the CM11 dev thread indicates that the NFC drivers currently included do not properly support Host Card Emulation, which would be required for Tap and Pay to work. Has anyone used Tap and Pay successfully?

Its a bit early for me to tell what the battery life is like, but from what I have seen, its at least as good as previous CM releases. Currently I'm at 68% with 4hrs 15 mins off battery and 35 mins screen time. This indicates that, as with previous CM ROMS, I should expect around 12-16 hours of use between charging with what I would consider moderate usage (this is obviously subjective, but I would describe this as not using the phone especially often, but not making a point to extend battery life). If the battery life continues to be similar to previous CM ROMS, then I would not consider CM11 to have acceptable battery life, as it does not get me through an entire day of use consistently (which is a real problem when I am traveling), but at least it is not a step backwards.

The wired headset play/pause button is still not working. From what I remember, this bug appeared in CM10.2. I vaguely remember reading that this is an issue with the kernel, but regardless, it is an issue that has not been fixed. I have not tried making a call with my wired headset mic, so I don't know if that is working yet.

I remember there being a google code site set up where we could report evita-specific issues with CM, but I can't find the link for it on the dev thread anymore. Does anyone have the link, or does this site no longer exist?

Also, does anyone know if the dual core hard reboot bug has been fixed? I know h8rift commented that he thought they had found the cause of the bug, but I don't think he ever followed up on that post, and reading through BBQLog, I can't tell if the bug has been fixed, though I have not experienced it.