Professionally installed and was a hard time, even for the pro. The top drawer had the necessary cutout for a standard sink drain pipe, however, the bottom drawer (conveniently not pictured?) did not also have the cutout. The Mfgr would not send another top drawer. This means you can either not install the bottom drawer in your new vanity, install the drawer but never be able to close it beyond halfway, purchase a different vanity and forfeit the entire cost on this one, ask your installer to cutout the bottom drawer and hope he agrees to as it is beyond the service agreement, or cut a cutout yourself and hope for the best. 
I was fortunate enough to have a great installer that agreed to do the cutout.
The vanity looks great, but is very light-duty construction. Made of particle board. Do not expect the finish to perform or last like real wood, because it definitely is not.