We spent a delicious evening at Tampopo.
The sushi, sashimi and dim sum were excellent. And what especially liked was that the host was ever so friendly and explained not only the food but as well how it was supposed to be eaten.
So I now know that sushi (maki and nigiri) are indeed finger food and just hold them differently.
She also explained why there was chinese lettuce under the sashimi and it should be eaten together.
Things I ignored until then.
As indicated by others, it's a bit more expensive than the average Japanese restaurant but for this kind of quality, I think it's money well spent.