Close to perfect for me for everyday use.  I needed one slim lightweight bag for quick-access to essentials when shopping that can also be easily slipped into my main pocketbook.  Done!

That said, there is one feature I would re-design:  as I don't understand the use of the shallow mesh pocket, unless it is for quick access to a card or cash, make it bit deeper because, for me, it is too shallow to trust anything to it.