Super solid - I do think some level designs work better than others but this can be well explored. The idea to rotate blocks without knocking over the tower, or adding a block here and there is good for obstacle courses. Where I find the design lacking is when it's too open and just having to build entire towers or large areas to reach the top. Definitely more fun when the level designs have a more integrated, yet open approach in how to solve it.
Also would be nice to have a more 360 camera view maybe something like captain toad perspectives, or being able to rotate the whole platform like a diorama
Overall really fun!