I had the older version of this, and it's a really lovely bag. I didn't like the strap being permanently fixed, sewn on directly so it can't be detached, but the newer version has changed that.
The other problem I had with it, though, was that it would get pulled slightly open when slung on my back - letting rain get straight in. As a thing, I loved it. As a practical bag to use, it was a bit more mixed for me. Some people do really love them.