First to answer the two questions I had that Wayfair couldn’t answer when I asked in case someone else has the same questions. 
1- Partial assembly requires putting together 6 pieces and attaching the remotes and plugs. 
2- the heat feature can be used without the massage feature. 
The chair came in 2 boxes which were very heavy but I was able to unpack them in the garage and carry the pieces into the house. Assembly was fairly easy but I did have difficulty getting one of the sides to line up. Overall the chair is nice but my husband is 6’5” so it is small for him. If you are taller I would look for a bigger chair.