I like that pieces snap together once they are close, but they won't stay together. If you move one piece that is joined to others, it doesn't move all of them, just that one. I found it opened in a little window which was the same size of the puzzle so there was no room to move, however, I was able to make the window larger to fill my screen and then there wasn't any issue.
Completely useless. The jigsaw generated ist larger than the board; the tiles don“t lock into each other; it is not possible to move several pieces at once.