Everyone is different but for me:

Pros: good price, I like the 55" width, vs 48 or 60. Seems to go up/down smoothly (too early to determine if/when it will fail to work). Mostly metal, very little plastic.

Cons: the top is not 1 solid piece but 4 pieces so there are seams that your computer mouse goes over, not ideal, kinda janky. Wables a little too much when high up. Still wables when at lowest setting but not as much. Shipped in a bunch of styrofoam.

Also, not necessarily a Con, but the cable hole covers don't fit snugly in the holes.  

Overall I like it for the price. If the top was solid it would get 5 stars.