I purchased this bag for two reasons;
1. I had a flight case that I used to transport the looper to gigs. It kept banging against my legs.
2. I needed to travel from Berlin to Limoges and needed a bag that was lighter and more ergonomic than the flight case.
The bag protects the device perfectly. There is adequate space in the other sections for cables, power supply etc. I could fit a dynamic mic in the bag without it's case but I wasn't happy with that. I would have liked a little more space in the outer sections as I power my looper with a power bank and I like to carry spare cables.
I cannot comment on the carrying comfort as I put the Boss bag inside a larger rucksack.
I am not really keen that the bag is labelled "Boss", and "Loopstation" send has the play stop symbol from the 505 embossed on the outside. To me that's a bit like labelling a bag "here...contains expensive equipment."
A good, functional bag that protected my looper on a long rail journey. To be a "one bag solution" need to be bigger.