The biggest puzzle I had before this was a 9x9 and wanted another challenge. When I saw there was 25% off on this puzzle I immediately bought it. First impressions: TOTALLY WORTH IT. The stickerless shades are amazing (except for the 2 yellows, and the dark green and blue, in certain lighting they can be hard to distinguish). Everything else is really nice colors. You wouldn't expect for a megaminx of this size to turn well, or be very stable. While it is heavy, and locks up (obviously), it turns really well. I have had no pieces pop after 1 solve. The only 2 things that happened were a center piece would move under another center piece, but if you reversed that move, it would go back into place no problem. The other thing was that the "stickers" on the corner pieces got disconnected a couple times, but they get reattached really easily. This is my first higher order megaminx puzzle, but solving it was very straight forward. As long as you know how to solve megaminx, and how to solve big cubes (4x4/5x5 or bigger), then you should easily be able to solve this puzzle, with maybe some intuition. Like I said I got this for 25% off (100 USD). If that offer is still up, I would definitely get this puzzle, it is definitely worth it. Even if it was normal price, I think I would still get it, but it would be a harder decision. If you have the money, like big cubes (technically dodecahedrons) and a challenge/ time consuming puzzles, I would 100% recommend this puzzle, it is amazing.