My wife can’t stop smiling!
I bought this kit for my wife’s bike so she could ride with me more often. I like to ride faster and further than she does so it meant we seldom rode together.
Right after I installed her kit (it took about 15 minutes) we went for a ride and she was smiling the whole time and was usually in front of me, especially on the hills. Great kit. One comment for improvement — the tiny and a little cheap feeling push button control. I am sure you could come up with a better design if you tried.