Clean, not far from sannomiya station(10min by foot or free shuttle bus)
Kind staff, i do not know their english level i spoke japanese with them... But they have english rules spreadsheet.
Onsen is great and big!
Capsules are very clean.
As always with those hotels bring excellent ear plugs because you WILL HEAR people snoring.
Plus, the plastick cracks and shimmies a bit when people climb or toss and turn in their capsules.
It is nonetheless an amazing experience.
This is another planet your going to, not just a country.
The guests were very kind with me also and tried sometimes to introduce themselves to me to try to understand why a french man came to Kobe to adopt their capsule ways for a night : )