The shape of the new version (July 2020) might change
This trailer is going to give you a lot of freedom when you need it and flexibility when not.
The arm which gets attached to the saddle tube is in a comfortable height so you don´t have to knee on the street when you want to connect the trailer to your bike.
The trailer is super fast to attach and detach.
The platform is having some holes to carry the trailer into your flat as well as some holes for attaching straps to secure your luggage.
Of course, if you need, the arm can be removed and replaced by the travel arm option