I felt exactly the same.. I think the show was pretty great right until the last episode. They let everything come to an end where they could promote their show as a psychological masterpiece and they leave the viewers pretty unsatisfied.
Enjoyed reading - hope you do more reviews in the future! :)
Thanks for the reply! It's really unfortunate that they had to end it like that, because I feel like a fan ending could have made for a much better show overall.