I got the update on my XOLO Q800 x edition. Probably a new year gift from XOLO
The performance is better now as the phone appears to be faster now although the interface and a few other options seems too cheesy/colorful.
Also there seems to be some problem in loading the contact images (during incoming/outgoing calls and messaging).
--> You have to take a back up of your contacts and remove the existing ones from your phone memory n then copy them again and then save the images for the contacts and then reboot the mobile. Only then the images does load for the contact.. (at least that's how it worked for me ).