The pictures on their site look like what you get here for sure, but the prices, oy vey! Japanese bakeries here make amazing bread products and it is nice to have the selection. That said, there is no comparison to the bread products available in Europe or America. And most places offer the same stuff. When in Europe or the States I always splurge and also ship a bunch back to be frozen and enjoyed over the next few months. Rye bread, decent sourdough, etc.
Hey, you're in London! Frankly the prices aren't that different from what other specialised bakeries / places like Ole & Steen charge, and at least you know the guys at Tetote do it themselves.