I got a 48" Godmorgon Ikea vanity with 4 drawers and the single bowl ceramic countertop. Looking at the instructions, it looks like it hangs on 6 screws. I don't want to use legs and they have it installed that way at the store (forgot to look how it was attached).

I plan on reinforcing the wall with cross braces so the screws go into solid wood at all points. However, this seems like not a lot of flimsy screws to hold the 100+ pound vanity plus whatever we put in the drawers.

Am I missing something?