First of all, the material and workmanship are very good.
If you insert your passport on one side and a ballpoint pen on the other, small parts in the main compartment are no longer easy to reach, as this severely restricts opening. This makes the small zippered compartment completely unusable. For sensible handling, you would have to empty the outer pockets every time you want to remove or add something.
An iPhone in the standard size only fits in very awkwardly.
Highly recommended for small items and as a wallet, but clearly too small for my purposes and disappointing in terms of functionality.
Unfortunately there is no assisted return, which is too inconvenient for me overseas, so I will probably sell it on Ebay.