The installation went smoothly. We did have to cut a hole/slot in the shelf to accommodate the drain trap. No worries though, when items fall through the hole, they land in the drawer below. Also, had to notch out the rear panel to slide under the drainpipe, but this is typical with vanity installations. The BIG issue is the water spots/stains on the vanity top. We've tried washing with just water and mild hand soap, not wanting to use any abrasive or harsh chemicals. No luck. The stains appear as dull spots in a few areas. Since the top comes already attached to the vanity, replacing it would be horrific. We just need to remember to completely dry the top of any water after each use. A little difficult with two young girls. Other than that, it looks great.