I have the receiver with VTI flashed 8.0.0 and equal an external WD 2TB hung on first boot, ran [.....], hooking and initializing take about 5 minutes.
All searched channels through channel scan, which takes about 10 minutes (1617 broadcast on Astra 19.2 ° East).
Even the DLNA plugin installed and everything is going well.
The VU + Zero I use on my projector and for recordings on which I can access from the TV, etc..
My 3rd VU + product and I'm really pleased.