For one thing, the placement of the straps is not very handy. The side pockets turned out very narrow.
The measure for clipping the corners is very big. I ripped it open and measured 3cm (after I had stitched the whole 10cm which made the whole bag square).
I would make longer straps.
I would top stitch the opening.
But the pattern has a very easy assembly and it's sure worth making variations on the same theme.