Many system apps have been removed. The system runs smoothly and quickly without ever manifesting lag. The free ram is amazing and remains free because the system does not have a lot of useless applications. With AnTuTu showed a score of 7491. At the moment I can not find bugs. I'll post the link of the discussion on HTCMania:
all credit goes to jordilopez94.
I preferred to remove the stock launcher and installed nova launcher and greenify.
Sorry for my bad english.
Edited by antonynext, 18 September 2013 - 07:30 PM.