As a "veteran" of put-together kits, I absolutely loved this. It is a grade of quality above other kits.

The maze then is a terrific challenge which I have yet to best but I look forward to weeks or months trying to get the ball through.

I loved making this model. It is beautiful and is also useful as quarantine entertainment :)

Fantastic customer service as well! Thanks for shipping the extra casing panels so quickly!

Absolutely love this puzzle! The amount of details and the level of intricacy are stellar.

The building instructions are well designed and easy to follow; double-check everything, it can be tricky (in a good way).

The best part is that when you are done building it, you have hours of play ahead!

I loved this puzzle, the complexity, beautiful design, that it is sculpturally beautiful for display & also never ending fun to play!

Shipping was fast & customer service instant & exceptional!

I love the Intrism Pro. I am just starting to enjoy building it. This item is great for educators who want to teach students engineering skills.

Then afterwards they have a ball maze to balance the ball on the tracks and the ball goes through different obstacles.

Bought this as a gift for my brother. He's one of those guys who is hard to shop for, but he really seems to like this gift.

He's in the middle of building it, and reports that it's challenging, but fun. I'm looking forward to seeing the finished product. Definitely recommend.