My son got it around his 1st birthday, date (at the time of review), he is 18 months old.
The balls (color) were picked clean - not the degree of what I expect to be suitable from 1 year.
Mom and dad playing always thrilled with it. Junior itch little - balls - as I said - misused recorded (although this is my set too expensive).
By comparison, other "construction toys" (wooden blocks, Duplo) are now intensively and independently, recorded concentrated. I therefore believe that it is not at the general lack of interest in this type of toy.
Possibly making it in combination with the SmartMax cars more fun? (To me personally now just too expensive to make it only once 'try')
Let's see if the interest or change, if so do I change the review.