Takes practice, but not perfect
This cookie cutter does a fairly good job, but is not perfect.  1) The dough cannot be more than 1/4" think, or the whole cookie sticks within the cookie cutter.  2) I had to carefully pick away excess dough around the tail and arms because of the intricate detail involved.  3) there were several times when the arm would not come clean and I ended up with a one-armed mermaid.  Other than that, it is a good cookie cutter.  Simply not worth five stars.
Rating: 4 stars