I have done several Jiggy Puzzles, one that comes in the glass jar, and a couple that come in a drawstring bag. The images have always been fun to put together, but the piece quality is not as high quality as the art and the packaging. Piece cuts are standard, and they are not the easiest to move around. I have not attempted to use the glue, as I like to swap my puzzles.
If you plan to glue the puzzle and keep the puzzle as art, it's a good buy (although other brands are just as frame worthy as these, and at lower prices). If you just want to do a puzzle, it's just an average experience.