Marcus Bonna Case for 2 Trombones Ten/Alto

I've had this case about four months now, and it seems that the quality, the protection, and the usefulness all are what the company says. The outer shell cloth is tear resistant enough to withstand scratching from metal edges (like door frames, tailgates et.c.), the outer ziplocks have a feel of quality and run smoothly and the inner padding and velcro have endured a lot of packing and unpacking without loosing shape or adhesion. The attaching of the shoulder straps is clever, with a construction that doesn't wear on the underlying outer fabric, and over all the straps and handles have a feel that seems to last for long time use. The outer pocket for notes is attached and removed with two zippers and is a little bigger than the bare need for some A4 sheets or books, the included mouthpiece bag is functional and feels durable, but I would only pack two mouthpieces with it. There is one quirk: The tenor bell is packed beneath the alto bell, which throws my assembly routine off and can be inconvenient when unpacking. The case is heavier than my previous double case, but not by much. All in all, it's great but pricey.