It's a little unorthodox perhaps compared to what we're used to, but not an unreasonable design, and I can see how it would work OK. And yeah, we can see that even the side areas around the kettle are being put to use.
I'm no carpenter, and for all we know Mokanpy may be. Raise your hand, dear readers, if you had to Google as I did, "Krebs". It's clever and obviously well-made, in my opinion. I read DD's critique before he deleted it and shared a few of the same opinions but all I really wanted to know is if Mokanpy liked it.