I have given top star ratings because of this was new to me and was unusual but very interesting.
Capsules you sleep in are small yet comfortable and only recommended for sleeping. If you want to sit back and watch a movie (which you use headphones for, it is a complete silence zone) then be sure to experience back pain since you will slouch.
As for showering. This is common and split male and female. Be warned you will shower side by side and be nude in the numbers of at least 15 onwards.
Same goes for jacuzzis and saunas and face washing areas. All in all good experience. Staff also very friendly and informative.
Definate recommend at least for one night, just for the experience.