Great stay great location.
Only thing is the adress is super hard to find we had to ask strangers and we followed them.
Be careful there are 2 koiwa stations, the keisei line and Jr line so this one is the JR line! Otherwise you will have 15 minutes of walk. Jr line is at 5 minutes.
Independent check in with key box; great idea I think.
We loved it! The city is super cute.