My 5 year old absolutely loved this marble run!! After getting all the pieces out we noticed one piece was damaged. I didn't want to return the whole set back to Amazon just for one piece so I messaged the company to see about getting the one defective piece. I was informed that they couldn't send just one single piece so they offered to send me a new set free of charge. I received the new set today, everything was perfect with the new set!! My son is even having more fun with all the added pieces!! Would definitely recommend to friends and family!! Only thing I'd mention is to keep track of the marbles! We already lost 2!! And I'm not sure if you can purchase replacement marbles!

My toddler loves it. The suggestion sheet for runs is a little confusing. But you can just make up your own lol.

This is a really nice marble run set. We bought it for our 3 year old grandson. The blocks are large and brightly colored, just like the name brand ones you buy for small kids. We liked the fact that you can put together 6 different configurations. That's great as your kid won't get bored.
The set arrived on time and was not damaged. No missing parts. We decided to put it together right away so our grandson could begin playing with it.
The directions are BAD and assembly is a chore. The problem is that the directions require you to use a green rectangle, for example, but the set doesn't have a green one. You might get a blue or pink one in your box. So you try to put it together but think you're missing the right piece. Then you figure out that the colors in the directions may not be the color included in your box. Hope that makes sense. We selected one of the "easy" designs and it took us almost one hour to construct it. Our grandson was bored out of his mind, too you g to help, and disappointed it took so long. Oh, and there are no marbles. At least not real glass marbles. Which is rather strange since it's a marble run toy. You get 4 plastic balls that are two pieces that snap together. So it's a plastic ball that is much larger than a regular marble. Once you get it put together, it's fun. But you dread having to take it apart in order to fit it back in the box. The thought of starting a new run is somewhat painful. Hoping our grandson will create his own towers or whatever. With "marbles" or not.

This marble run junior has been a hit for the summer preschool campers! When the opportunity arose for a gift, I chose this for cooperative play that will last several years. Even adult caregivers will enjoy constructing slopes, tunnels, and mazes with their young ones.

Gave to my 4 year old brother for his birthday - it's great, he loved it. The marbles are even a plastic that you snap together, so if you step on them they tend to snap apart under the pressure as opposed to rolling, which makes them a little safer to have for littles who like to make stuff fly, lol