This play set will be used in a church pre-school for toddlers.  It is very durable and appears to be well made. The pieces fit together well and is very sturdy.  I also would recommend that the directions be printed in color.  That would make assembly much easier.  We used the videos attached to the web-site. They simplified the assembly and expedited the process.  Even with that said, you should allow 2 people about four hours for assembly.  The play set will be a welcome addition to our playground.