Great bike assist!
This whole approach is ideal for someone who wants to cycle recreationaly but is insecure about hills or distance. It’s increased my wife’s confidence and willingness to attempt longer rides, even though she ends up using the motor for just a few minutes. She likes just knowing that the support is there if she needs it.
And because the power is “mild” with a 250 watt motor, we get around lots of issues that come up with more powerful setups, such as the needs for steel forks, torque arms, cadence sensors and throttles. The momentary-contact, it’s on or off switch is ideal to encourage use only when boost is wanted.