I have the dog trailer version…same brand. It was like $100 on Amazon and works pretty well. Frankly, it hasn’t gotten a ton of use, so I can’t give you a good idea of how well it’ll hold up in the long-term, but it seems okay. It definitely doesn’t feel super premium, but it’s like a third the cost of the Burleys and such. Our dog hates riding in it, so its primary job is hauling groceries when my wife has the car.
The attachment process is super easy…you just thread your skewer through the hitch thing (which you can leave on permanently), and then attach the trailer to that. The joint of the attaching arm seems to have a pretty wide range of movement too…I can turn my bike around in relatively small spaces, and my bike has fallen over with the trailer attached without unsettling the trailer or screwing up the attachment pieces.
My main complaint is that it takes up a lot of room in the shed…it folds up, but you don’t want to deal with that if you’ll be using it regularly.