The most fun restaurant I have ever visited! It's basically a one-man band, with the owner doing pretty much everything: cooking, serving, cleaning and dealing with customers. The restaurant is a minimalist's nightmare, but it actually has its charm, with a lot of handmade decorations and jokes all over.
The food was pretty tasty, with a fair variety of okonomiyaki, and there were plenty of gluten-free options, so it's good for celiacs.
Prices were very reasonable for the quality of the food, and the experience.
I'll definitely visit again when I'm in town.