Big, durable and easy to carry bag.
Personally, I use it for carrying two MIDI keyboards, one 88 key and another 61key. All three pedals that I use fit comfortably in front pockets, straps are extremely solid and the option to carry it with someone by using the two side handles is ingenious.
The only flaw of this bag is it's greatest virtue - size. It's a bit hard to store anywhere because of the sturdiness of the bag, it is very hard to bend to a smaller shape but if you need this big of a bag, than you for sure have something big to store in it.