I've travelled the world... and eaten lots of sushi - whether Japan, Vancouver, London, etc...
Umeno is quite authentic, the sushi chef is extremely precise / well trained, and the food is well priced for Amsterdam. It's not the Okura, but I've yet to have a bad meal here, and it's at least half the price.
Overall ambience is ok, and service can be slow at times (only sushi chef and his wife?), but if you're in the area... well worth the visit.
I've eaten here three times and have yet to have a bad meal.
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