We have had our set for 2 years. The installation instructions were very clear and easy to follow, and it took 2 of us about 13 hours to construct. It is nice that all the hardware and wood is included. Our kids love it! It is very sturdy and still in great condition. Our only complaint is that some of the bolts have had to have been retightened more than expected, and we had to replace the bolts for the slide with longer ones that hold better, which worked. It is still very secure though. It is a well made playset for a good price! We highly recommend Gorilla products.