I did not see the 2 1/2 star review before ...
I did not see the 2 1/2 star review before I purchased this but I agree 2 1/2 or less.  No instructions except on box but not helpful; doesn't work and even the stamp (top part) fell of the first time I used it.  This may just be a cheap one; I will try another brand to see if this works.  Thumbs down.
Rating: 2 stars