Two downfalls.
1)Rain. E-Bikes don't like rain. A 48 volt lithium ion battery that puts out 500 watts for three hours does not respond well to a water soaking. I don't like showing up for work soaking wet either.
2)Unexpected carrying of items related to my job. Several times I had to ride home from work and then drive the car back to bring home electronics, cases of heavy items.
Other than that I recovered the purchase cost in six months, my health is better, I feel better, and when you arrive at work you feel like getting busy. When you arrive home you don't flop on the couch and crash.
*Also, you will get flat tires. The torque on the drive wheel tends to really make a hole if you hit a sharp object in the street.
Yep. I had one. Got tired of buying expensive batteries for it when you can buy a 4 stroke gas engine for the same price as the batteries. I got 9,000 mi on that motor now. The same laws apply to gas bikes as electric bikes.
I got a currie e-zip trailz, also bought a dolly with inflatable wheels, I chain it to the back rack and carry 5 gallon water bottles for my dispenser.
best thing ever.