I don't quite share the enthusiasm of the reviewers claiming that the movie is a must-see, but it is not trash either. It's actually a black-humored comedy and rather good for a change. I disagree about wasting 98 minutes of your life, because if you don't find the movie attractive in the first 10 minutes, then stop watching it - it's not your kind of a show. I wouldn't compare it to the Addams Family, one of my all-time favorites, but something in the setting, darkness, characters, and pace makes the two somehow alike. Though, indeed, I, too, would prefer less toilet and bowel movement humor, but it relates to the major part of the plot, the health efficiency theory of the masterful mother-former owner of the hotel who used to run (and seem to still run) it, so not much complaining there.
My opinion - give it a try, chances are that you'll be entertained. But if it doesn't work for you - well, the "Off" button is still on your remote.