We bought this for our 15 month old son at Christmas despite the 3yr+ age guidance....and glad we did! I would imagine by the time he reaches 3 he may have outgrown this, but he has fun with this and was quickly able to learn to climb and slide, and has great fun hiding and playing underneath.
The instructions are very basic and we found the 3 main pieces were difficult to connect & had to get assistance to ensure the slide was secure. Took us over 2 hours of being unsure of what we were doing to eventually get it built....would recommend 3 people!