European ZTE Blade TPT upgraded to Gen2, rebranded as "BASE Lutea" by the provider. Upgraded from CM 7.2.
The ROM is reasonably fast, considering that this is Android 4.2 running on a 600 Mhz single-core CPU.
Everything I tested worked so far. It was fascinating to see all these shiny new JB apps running on this old phone. But it was clearly slower then Cyanogenmod 7.2. (Android 2.3.x)
But there was finally one show stopper: The microphone was incredibly low-voiced to the point that e. g. voice search didn't work (it didn't recognize anything) and persons I called couldn't understand me, unless I screamed directly into the mic.
Re-flashing back to Cyanogenmod 7.2 fixed the microphone volume issue.
No "whining", just a report. ;)