The picture quality on the V3 box is a tad sharper than the older ones but the newer boxes have more than a few issues for a lot of people if you look at the Sky Community forums, me included. Sound dropouts, network interference, HDMI handshake issues, etc, etc, the list is long. If your box functions reasonably well then I'd stick with it for now. Sky are investigating the drop-out issue with a number of Sky Q customers assisting but it's been going on for a while and no fix has been forthcoming. There will hopefully be a new Q box available at some point which might solve a lot of the problems but I'm not holding my breath. I'm just insisting on reduced subscription costs until they sort it out, otherwise I'll be ditching it.