I have spent about 3 days with the rom now. So far so good. I like the app draw especially the easy way to organise the apps. I find the quick toggles a bit difficult to activate sometimes, it looks like they are less sensitive than ICS or the touching "surface" is smaller, yet it might be my impression.
I do like the new notifications from 4.1.2 though.
The biggest problem that i'm facing is that when i'm charging the phone is not going to deep sleep and cpu is working at max speed. I know some other people have this bug and not so sure if there is a solution?
I had no issues installing the ROM after wipe date/factory reset, wipe cache and wipe dalvik cache