I really like this product from both visual and functional perspective. Gigbag is really stylish.
Front upper pocket can fit not only mouthpieces but also some pencils and i sometimes carry there my valve oil. But be aware it can fall out.
Big front pocket can fit my tablet and also some paper sheet music. It lacks some more organization so small things will always end up on the bottom of this pocket and accessing them will require pulling everything out.
The bag itself feels really good on my back, with both trumpets, accessories, tables and sheet music is on the heavier side but back straps are comfortable to wear for a longer period of time. I personally find side shoulder strap not comfortable at all. It falls from shoulder its hard. But it's just my personal opinion.
Most of the use can be seen on leather holding shoulder strap to bag and on top handle, but nothing too bad.
Inside the bag is a lot of space for both instruments. Normally i carry Bb and C trumpet, but with some additional padding piccolo trumpet can be carried as well (Not at once, one trumpet and piccolo. Just to clarify:).
In short great gigbag.