I play at a pretty hilly course and find that it doesn’t have good control heading downhill. To be safe I would just manually operate it and it somewhat defeats the purpose.
Strapping the bag down is a bit more difficult as well as compared to other carts I’ve used. The elastic ropes with round “balls” although secure when attached are not easy to connect/disconnect.
My .02. I don’t want to be a negative on your site because overall for a first try with an electric cart I would simply ...