I ride a 2 wheeler & on 1 group ride, I have run into a few tadpole (2 wheels front) riders & 1 delta (2 wheels rear) rider. As we conversed, they all felt that the tricycle is more stable & enjoyable as we labored up hill. Other than that I can say that downhill speed and lower wind profile makes the recumbent an excellent way to enjoy your ride vs the diamond frames. There is a discussion on this subject over on Bent rider online. I think the ultimate conclusion is that the 2 wheelers will be `1.3 mph faster. I felt like the trike was just plain more fun. If you have the money, get both!