Yeah, it only detects movement, but that's fine, you decide for yourself how much you wanna help the motor..

My grips are ergo, so twist no good for me. Thumb is great as a booster. Plus PAS is a legal requirement over here.

Can't you turn the rack back to front, any lower, or push the battery further forward? Anything to help distribution. Still, looks okay. Just powering up bumps could make the front very light. Tried imounting the rack on the fork..?

I agree on getting the computer out. Wires face down, they're fine. Mine have always been half covered, just a rain drip over the top, but wind turbulence cools it.

Whatever the details, that looks like a great little leisure/cruiser bike for her.