The table was extremely hard to assemble without an electric drill. It took me and my husband 4 hours to assemble. 
I actually did not like the final look. Marble looks fake. (This is my mistake on choosing the color).
That said, my biggest problem with the table was that it is not comfortable  to sit at. It is a rather big table but only 4 people can sit at it because of the  base structure. So it is not ideal for people who have small places and want to open the whole thing for more people. 
Another problem was that even though the wing opening base has a lock, it is rather loose. I had a feeling that the wing can fall off with everything on it any minute. (It didn't though.)
I liked the idea of the design. But I think it needs to be more efficient.