I think it works great. Its nice to switch speed modes for beginners to try. and it isn’t touchy. The safety switch works well to slow you down gradually to a stop if you come of the safety button or battery dies and I can run it over with a truck. It vibrates for safety if it disconnects (but that is no longer an issue)
I do like my Marbel remote. Smooth response like the video shows, and really durable! I actually have a spare they sent me when i had some of those disconnect issues (they flashed new firmware when my nose power button died).