I just landed in Tokyo for the first time last night and ended up in the Don Quixote in Shibuya by accident (or adventure). What an experience! It's an invasion of all the senses!
I tried it once for the first time a couple weeks ago. $12 total. While it was "worth it" if converting the dollars to time saved, it's also telling that I haven't gone back and used it again.
The interface also allow to comment, post and interact with the original HN platform. Credentials are stored locally and are never sent to any server, you can check the source code here: https://github.com/GabrielePicco/hacker-news-rich.