I'm using one although not that brand. It struggles on wet grass or loose sand but on a hard surface it will climb a small slope on uneven surface.
Early on I powered it with a jury-rigged connection to my jump starter. Once I was happy with it's performance for my needs, I fitted a second Anderson to the drawbar for power. Mine has SB15 sockets so simple to build a power cable.
hi all
any one using one of these
https://www.amazon.com.au/Giantz-Motorised-Jockey-Trailer-Caravan/dp/B0779BCKKN