The table surface is perfectly flat which to me is amazing. And with the leg kit installed everything is solid as a rock, I would not beat on it with a sedge but a hammer and punch your fine. The only thing I wish that you would change is the hardware for mounting the legs and casters should be 5/8 not 1/2. You punch a 16mm hole which is a little bigger then 5/8, you should send 5/8 hardware. My only change after a week of use.
1/4" Thick / 16MM Holes