Very nice. Lightyears better than those bland squares I have been using. Mounting mine on 1/2 inch MDF board (Modge Podge glue), cuts fairly easly (jigsaw) and some belt sander work to smooth the sides (goes very quickly). I then paint the edges a red (acrylic from AC Moores - the cheap stuff), lightly sand it when done (smoothes the rough edges), then spray a protective finish over them. Very nice looking !!
My only wish would be to see several straight pieces on one page - allows for some variety in the artwork, also allows quick printing of several pieces at once. Same for the other smaller pieces.
Power tools - be careful with them. The jigsaw cutting is difficult for the smaller pieces, even with a clamp. Not for the faint hearted or inexperienced.