I've done my share of gradient puzzles (including some Soonness ones), but this one was, by far, the most challenging. Having my red gradient in 5 different areas was a little mind bending, but the image is GORGEOUS and has all the quality I expect from a Soonness PNP limited edition. There was plenty of variety in the piece shapes, and there were no false fits so even though I moved slowly, I was never stuck. There was minimal puzzle dust. It was challenging in a stimulating way with all the bright colors (oh fun! I'm moving into the teal!) but I would say this isn't a puzzle for beginners. The soothing matte finish and the lovely feel of the pieces gives me all the satisfaction I expect from this brand. And the ART! Come on! I'm so happy they support talented artists and there was NO PLASTIC in my order. Overall, a 5 star experience if you are up for a bit of a challenge.