Its a whirlwind experience If you are expecting to get what you normally get at a massage parlor, you will be despaired and disappointed. After all the series IS called Dark.
Having said that I must say it is a fun filled journey, at least till the end of season 2. Makes you wonder about many things which are not limited to things time travel, space, time, higgs "bo*om" , reflective journalism, trumps as$hole etc...
However, Season 3 was definitely a stretch. The background music was morosely filled with the cries of the dead horse the producers were beating up on the side. They should have quit when they were leading.