York is flat, very flat and there is often little protection from a strong headwind. Just drop into a lower gear and away you go. I have not yet had to use my little ring in anger, although given the gently undulating York plain this is not surprising. In terms of comfort the Trice is far superior to a diamond frame. The riding position does appear to use different muscles, and my efficiency improved noticeably over the first two weeks.
Vision is open to the front, although restricted to the rear.
I have a side mirror and use it all the time. One note about the cycling position. As supplied, the seat provides full support for yourhead. This has not turned out to be a problem. The bright orange seat, a rather dinky flag and the width of the Trice make drivers pay attention.