This was a fun way to explore the Malasaña neighborhood. Our guide was well-prepared and friendly, and it was a fun way to spend a morning.
That said, if you are into puzzles or escape rooms, these puzzles were for the most part relatively easy. For the most part they weren't linked to the locations, so it felt mostly like walking from place to place to do a puzzle that could be done anywhere else. The puzzles, or at times tasks, didn't directly relate to the story itself.
So, this could be a great experience, depending on your expectations.