Learning Curve
We've now put a hundred miles or more on the bike riding around the college town we live in (Conway,AR) and the two most apparent problems are
1. The bike is to small for my son and I and it is a mountain bike which tends to tip a rider forward and put more weight on our hands than I'd prefer.
2. The vibration is still an issue. We've tried placing some 1/8 inch rubber sheets between the mounts the bike tubes, but either we've used the wrong type, or we need much thicker rubber. We probably won't attach this on this bike. We may sell this one and try buying a larger cruiser style bike and see if we like its comfort better.
It seems to me that a 3 wheel recumbent would be an interesting project to motorize. I do worry about its visibility though. Strobe lights might be necessary on one of these.