Well- after all the pro's , con's and slaggings, I finally took the plunge and bought one.
Set-up, including connecting to wi-fi was both quick and easy, took about 10 minutes.
After a quick check for a upgrade ( not required on the 1TB model ) and a channel scan, we were away.
Only one minor complaint - no link through aerial lead in the box- othewise, well pleased.
I did'nt tell SWMBO that apps are available for the ipad- should have seen her face when the tv started changing channels 'by itself ' - had to be seen to be believed!
Incidentally, graham, be very careful not to let your nexus overheat. Charging the one i had, after prolonged use, caused the batteries to swell and crack the screen.