[Magen]

Quick question:

I'd really like to visit a traditional Sento or Onsen, but alas I am covered with tattoos (and yokai to boot) I figure I have a safe bet with a more touristy Oedo Onsen Monogatari in Tokyo (or do I?)

Does anyone here (perhaps with lots of tattoos) have experiences, good or bad, about Onsen that I should know about before trying to get into one?