Bath houses are more ' in your face' than other places.
Your own personal standards are what you will measure your experience against, not other guys'
Go, check it out for yourself, don't do anything you wouldn't anywhere else. Dont go drunk or high.
Some are very clean, others aren't as clean.
Some are full of fat / unattractive / old men, others aren't
Sometimes all of the above vary day by day.
Dont go on opening or too close to closing.
If you wouldn't get intimate with someone you couldn't see (or see their body parts) normally, make sure you don't do that at the bath-house.
Be polite, if someone hits on you that you're not attracted to, say thanks but no; If someone touches you and you dont want them to, just gently remove their hand.
Above all, try and treat your fellow man with some decency and respect.