Sorry for doubting you! Welcome to the forum.
It does look like a good deal, but then so did London Bridge when some Americans were offered it!
I've got a GoKart, and whilst not as cheap as the trolley you mentioned, they consistently get great write-ups. However, they're not to everyone's taste), so I'm certainly not going to turn this into another GoKart thread.
Only downside of the Pro Rider is that from pics on the web, it appears quite large when folded, and looks a bit plastic-y on the handle and scorecard holder section.