My kiddo has liked the Octonauts show for about 8 years so when I saw this Gup-R building block set I ordered it pretty quickly.My child really likes it overall and noted the nice smooth pieces. He loves that it has wheels on the bottom so that he can drive it around. He also loves that it includes a Captain Barnacles minifigure, which he had to build using the directions. Building the minifig was frustrating because he could not get the legs to attach without using a lot of force. However, the rest of the set was easy for him to assemble without assistance.He wishes there would have been a blue 2x4 plate included so that he could close off the compartment below the dorsal fin, so Captain Barnacles could ‘transport’ things securely in this little area. He fixed this by using one of his 2x4 Lego brand plates, so we know these bricks are compatible with the name brand. He didn’t like that he had to carefully apply stickers to multiple pieces; he would have rather had the pieces come printed with the designs.The helmet shown on the listing photos and on the box exists only in one’s imagination. It would have been pretty cool to have the helmet pieces included with the set since the Octonauts spend most of their time underwater.Looking back at the listing photos, we discovered something that was not mentioned in the instruction manual. We didn’t realize that the ‘flanks’ (the water splash-looking bits at the tips of the wings) could be ‘fired’ by pressing down on them! They shoot several feet in an unpredictable direction, so have your child play with it in an open area where the pieces will be easily spotted.The length and width measurements of the Gup-R are pretty accurate but the height is closer to 3.5” rather than the 2.4” the listing shows.The manual says the set is for kids 3+ but the listing says it’s for kids 6+. Most of the printing on the box is in some other language, but the directions for building are pictoral, and easy to follow.