This is a very poor quality item. 

Let’s talk about finish. It is plastic but overall It looks like styrofoam. It has dimples all over it that makes it look like an inconsistent finish. It looks and feels cheap. 

Structure. The overall assembly of it is easy but it flexes ALOT. I’m replacing an old wooden chair that started to rot out after 8 years. This flexes just as much as the rotted wood. I uploaded a video. The area you sit flexes by 12 inch just by pressing it. I sat on it first and sank. Thought it was going to break. I really would not be surprised if the seat broke this year. It’s delicate. Even the the arms flex. 

Does it rock
Overall, you get barely any movement. And it stops suddenly at its max and min. You can get more movement from rocking from your toes to your heels. You can tell this things natural position is stationary. 

Overall
Not happy with this purchase. Most likely to return for a refund.