Really nice set! Good quality and very creative. Easy to put together with the BILT instructions.  I recommend using a drill if your comfortable using one.  Saves time and forearm strain.  Looking forward to seeing my kids playing with this on Christmas morning!  Looks like the set is durable.  Most items are made of plywood and high quality molded plastic as well as real woven fabric.  It should last a lifetime but time will tell.