Below are the good and "left desired" points about the product.
Pros :- 1. Simple to build. Its mostly snapping the pieces together. 2. Very innovative. 3. Easy for kids to pick up and understand.
Left Desired :- 1. There are no more additional modules. Once you get going you might want to identify a few more individual modules. You have a good product but pls build on it further. 2. The motors need to resoldered. This is a major area of improvement. 3. It would have been great if we had acrylic sheets as well plus some nuts and bolts.