My kids have a number of Lego and Kre-O sets, so adding a set they've never heard of to their collection is always fun. I enjoyed seeing the "Ooh, I can't wait to play with it" looks on their faces. They have fun completing tasks, so they were excited to create the Construction Vehicle. It only took them about 15 minutes to put it together, roughly 30 minutes to put the Police Set together, but they played with it for almost 2 hours. A toy that provides me with a little mommy time is a plus!
Initially I was not sure whether or not my boys would be able to complete it without help from me, because some of the pieces are really small. However, the instructions are easy to understand and I clearly underestimated them. I will be buying more of these!
Disclaimer: This is my honest opinion of the Lego Juniors Sets. I would NEVER recommend a product I did not experience.