Thanks offerendum, Taku sounds/feels indeed special in many ways from your images and descriptions of their offerings.

I'm glad you could now try this particular restaurant. The Excelsior Ernst remains the best hotel in Cologne for many, I guess?

I believe next year [2017] will see the re-opening of the Dom Hotel Cologne by Althoff.

In regards to value, sounds fair and the concept sounds interesting = delicious food to us, we would want to try this restaurant too in our future.

Cheers & Safe Travels. ^