Japango is a small cozy little place. In such a small space, similar restaurant in Tokyo often have a long, winding bar, but Japango opted for tables. This is better for person-to-person interaction, but makes getting in and out of the place a little bit more difficult.
The food is great. I had the Sashimi Dinner Deluxe and the Maguro otoro nigiri. Good portions, fresh and tasty fish.
I knew their wasabi tasted different, so I asked the chef if they use real wasabi. They DO use SOME real wasabi - but I think they mix in fake powder wasabi, which is not as pleasant. Real wasabi is a lot less powerful and has a plant-ier texture (it's a ground-up plant stem). Note - you do not really want to mix real wasabi with soy sauce - that's a no-no. Considering most joints here of similar price don't even bother with real wasabi, this was sort of nice.
All in all, they are much better than most of their competitors in town for the same price. Solid 4/5.