Had one come into the shop,a cust wanted to compare to a Brompton. He left without really saying anything. I looked up that other thread and found this nugget:
Originally Posted by
Waiitwi
yes, it's a slightly different/ new way of riding a bike - that's what I find so awesome... due to the posture and wobbling, it also relaxes the body and conditions muscles in the pelvic area... it's in Basically also a special training aid
Looking at the bike,and then reading this,I have no desire to even try one of these. I def wouldn't ride one down a steep hill on a bet. It really seems like a specialty product for someone who has a short ride and needs to put their bike in a locker.