I prepared my husband beforehand telling him the reviews said it would take 4 hours to assemble.  He sat in a chair and read the instructions to our 9 year old grandson who did a major part of the job as a home school project.  Took 15 minutes to unpack, and 4 and 1/2 hours to put together.  It is very sturdy, has extra clicking knobs in case of breakage.  As others said it would be nicer with real phone buttons or buttons on the microwave.  My grandchildren love it.  

Pros: Sturdy, heavy duty, will last 
Cons: Expect it to take 4 hours to assemble.