All in all this table does its job well for the price point. It was easy to assemble and the wheels roll smoothly even on carpet.
My only issue with it are the twist nob adjustments. They tend to loosen up every three or four uses and if you are not paying attention, it will tip the top when you aren't paying attention.
This is important to me since we use this table for my paraplegic son to eat his means in his wheelchair. Therefore, we have to be careful to check it every couple of uses to see if it needs to be tightened back up.
The top is made out of particle board, I am sure, but it isn't cheaply made and holds up well to being cleaned because of the smooth covering and sides on the tabletop.
In summary, for the price point, it's a good buy. If you aren't keen on having to double check the tightness of the screw mechanism, you should opt of a higher end table at a higher price.