The tank bag has been well designed. It does not interfere with anything. I had the satnav fitted and can view that with no problem. It also does not obstruct any views of the dash. It hooks into the bottom two holes nearest the rider and there is a large clip near the screen. To refuel all you have to do is to undo the clip and lift the bag and tip it towards yourself. I suspect it may be easier to lift the unit off to refuel.
Another snag that has occurred is that the screen sometimes will not go down to its lowest setting. This is rare but when it does I simply switch off and on again and all is well. It is not snagging against anything or meeting any resistance as according to the manual if it does, it backs off a fraction which it isn't doing. I spoke to the sales team and the dealership who were baffled. Given the rare times that this happens I can live with it.
I rode it yesterday to work from Peterborough to Milton Keynes. This is all motorway (freeway) or dual carriageways. I was concerned as to filtering with such a wide bike. I need not have worried. The lights on the big are so much bigger that cars see me coming (unless the prats are texting whilst waiting in traffic) and part to allow me access. I also suspect they may think it is a police bike. Eitherway filtering is not a problem.