My husband and brother in law were able to easily put the set together in about 3 hours.  They said the parts were clearly labeled so assembly was a breeze. So far the kids are loving it!  They are 4, 7, and 18 months.  Perfect for all three!  I'm impressed with the quality and it's very stable and solid.  It's a great fit for our yard.  We put it in the front because we are always having neighbor kids over to play and socialize too so it's really been a hit.  The wood has a finish on it that I'm not sure will hold up for many years, but thats yet to be determined.  I'm sure it'll hold up long enough for the amount of time the kids will be using it.  Definitely recommend this set for the age range.