Yes I tried installing the update in zip file format from CWM recovery and received "Assert Fails:apply_patch_check, ("/system/vendor/lib/hw/power.grouper.so") showing Status 7. This indicates a kernel that is "not stock", so I restored the stock kernel and tried the zip update again and had the same results. My next attempt was a sideload of the zip update file and I had the same error. I am looking at the stock rom 4.3 on xda Here
, but I am curious as to whether the OTA will give the same error, so until I receive feedback that the OTA fails for the same reason, I will wait a day or two before trying the xda 4.3 stock rom. Be advised, that the App Store version of SU has issues with 4.3, so make sure you read xda 4.3 stock rom post if you fail to access SU after applying the update with CWM.