I've got the GSM version, not Verizon. I don't know how much of a difference that makes, but I'd guess the ROM itself is pretty much the same just the bits of software that communicate with the radio stack is different (GSM radios vs CDMA)
Anyway, I've been running CM 11-2013211 for roughly a week (its a nightly, directly from CM's website). I've had very few issues. Even the graphical issues that plagued all the early 4.4 ROMs (Not just CM's) are pretty much gone. I've actually found it to be almost as stable as any 4.3 ROMs I've tried (again, not just CM's, I mean ANY of the 4.3 ROMs)
However, I did experience some bootlooping trying to get it up and running. I've found that doing a complete factory wipe (Data, cache, dalvik) before and after installing the ROM helps. Once it boots up I let it sit for 5-10 minutes. Usually I go out for a cigarette and by the time I come back in, it's booted up. If it's still booting I'll yank the battery, boot back into recovery, and factory wipe once again. This 2nd wipe for whatever reason is the cure. I can't say why it won't always fully boot after the first wipe, but for me it ALWAYS boots after the 2nd one.
Now of course you're going to loose all your data, so back it up before you even start. Good luck!