Overall the Swytch conversion works really well. It is relatively light, charges quickly, and the range specification is very accurate. The kit was pretty easy to install, except for one issue: mtb forks may require the smaller diameter axle, so be sure to measure and specify that information when ordering. Also if installing on an mtb, consider ordering (if your frame configuration or seat/dropper post will allow) an alternate position mount kit because the handlebar mounting may cause too much weight on the front. Nevertheless, the first kit worked out so well we ordered a second one for another mtb. Two things that can be improved are how long the kit takes to arrive (needs to be shorter) and the slow response when requesting support or asking questions.