This was purchased for our 3 year old granddaughter 
and 2 year old grandsons. They immediately took on mommy and daddy personas. Two children can play easily with the different care stations. My only caution is the tipping factor if the cabinet or washer doors are pulled on too abruptly. This happened in the beginning with our 2.5 yr. grandson but he soon learned to do laundry more carefully :)
In my opinion the assembly was medium difficulty as one piece was a bit "off" at first. I watched and held pieces as my husband put it together. 
Our granddaughter now plays with this immediately when visiting. Our grandsons still gravitate to their trucks but also use this for their animals and Mogli doll.