What made it was the range of cycles one could try out - without a lot of the usual hassles associated with this sort of thing. You could just get on and ride.
We both had a go on recumbents, Monica sticking to three wheels, whilst I tried two. Monica also got back onto two wheels for the first time in many years, which was really good to see.
She absolutely adored the Greenspeed GT3, and it was hard to get her off it!