After a week of trying the latest firmware I can say that the Android Combo does everything I would wish in a £50 receiver and slightly more, regardless of the promise of 4:2:2 delivered on a plate.
It is as sensitive as the SF8008, drives the dish as I would like, blind scan is accurate and fast, is has 4k even though I'm not using it yet, the interface isn't Enigma and it now records and plays video and audio back from the USB stick, I haven't tried the SD card slot so far.
The remote control is relatively well laid out though bluetooth operation is just a bit flakey when first powered on but that could be the other devices nearby.
Even the clock appears to be behaving itself.
The next upgrade should tidy up features beyond the basic receiver foibles making it a decent box for the DXers.
If the development team ever add a pseudo FreeSat epg then it would also appeal to those looking to replace an ageing Sky HD box, cutting their electricity bill as well.