I have had this cargo bike for two years. It seats two kids on the back easily. When I was initially offered an electric drive option I have declined because it doubles the price. I managed to haul them around in the neighborhood, crawling up hills when I have to, all on the power of my own legs. I was so good I wouldn't need electric assistance.
That was until I found this e-bike kit for as low as $700. Then I jumped on it. I took me two week to receive my order and properly installed it. Now I have an electric assisted bike! My power is doubled!
My reservation that I am going to get less exercise turned out to be unwarranted. I sweat just as much if not more with this bike. It has greatly expand my range beyond the two miles radius I had usually confined to. Rather than relaxing, I pushed the performance two level up and pumped just as hard but at a higher speed. It is now practical to travel around much of the city by bike and it is not much slower than by car.
The economic 250W motor is consider a lite electric motor. It can go to about 15mph on a flat. This is already faster than my sustained speed. It won't go up a steep hill on its own. I have to work together with it. I think this amount of power boost is just what I need. I want to bike myself and get some assistance on hills and from dead stop, not wanting the motor to do all the work.
After one week, I have learned to harness its power better. Next maybe I should reconsider my riding style, just try let the motor run more and save myself some sweat.