I like visiting museums (and temples) and I've found the Edo Ryogoku Museum to be one of the best (and better bilingual) museums in the city.
If you don't enjoy museums this one is unlikely to magically convert you.

I got my visa to China yesterday and I've ordered at Chisun Hotel Ueno for the stay now. I think I've gotten all my questions answered, but I will post in this thread again if I come up with any more. Thanks for all the help so far!

I second LapLap's endorsement. Having studied Japanese history and culture for years before going to the museum, it brought aspects of Japan to life in a way that nothing else could.

IMHO, the Edo Museum is a camel, i.e. operated by committee. It tries to do too much and lacks originality and consistency in it's displays. It's probably worth a visit, but I always think it fails to come anywhere close to its potential.

Another option is the Fukagawa Edo Museum. It's a re-creation of an Edo village and really well done. Depends on your taste, by always find it fascinating.

English at PEK and NRT are from my experiences not that bad, better at NRT though. You will have no problems buying train tickets from the ticket counter at NRT or Keisei Ueno.

Tokyo is very safe, probably safer than Oslo, but PLEASE do not become victim of the scams in Roppongi. I managed that. The police in Tokyo doesn't seem to care about Roppongi at all nor will they help if something happens there.

Other than that, enjoy becoming "Lost in Translation". :)

I do like museums, so I will probably go to the Edo musuem.

As for safety I'm not concerned at all, I was in Rio in February and compared to some of the areas there Tokyo won't be scary at all. Thanks for tips on a scam, I usually don't get tricked by them, but good to know anyway!