In the mobile phone pocket (outside) I have noticed that this does not close properly and my phone ever fell out while rolling. Thanks to the many pockets but you can stow away the phone in his pocket.
For me as a "frequent traveler" of the scooter is a biocompatible very good solution which drag me nearly the constant decreases. When traveling by air or rail travel, I will still be with two rolling objects consider it as work.
In my first delivery of the strap was missing. This was handled without any problems quickly and at no additional cost on Amazon (the best settlement service Amazon in internet orders; keep it up !!).
The trolley keeps its promises and is for me the best solution!