Mario works off a very solid foundation, especially in this incarnation. Super Mario 3D Land still has a good structure when it comes to level design but the real issue here is that there's nothing interesting. It's very boneless, in a sense that every particular level doesn't bring anything remotely engaging that hasn't either been done before in the series or on its own doesn't work that well to be remotely interesting. Iteration isn't by itself bad, but I struggle to find what exactly this is iterating on that is good.

It's a super stretched out easy platforming romp. It's comfy for a few hours and then overly outstays its welcome. It's ok at best but I just don't recommend playing it and go play 3D World instead.