I am an experienced builder who has put in many wall mounted cabinets.  The problem, that is easily correctable with this vanity is the cutout for the p-trap.  Its too small.  The manufacturer needs to make it larger so that the installation is easier.  I had to modify the cabinet for the drawer to close.  Also, the faucet hole is very close to the wall so if you purchase a faucet with lift rod (the thing that opens and closes the drain), it will probably not fit.  You need to install a pop up drain.  This is not a vanity that I would recommend that a weekend warrior try installing.