The wonderful advantage to having an under-mount sink is that while cleaning your countertops you can simply wipe the remaining contents off of your countertop and straight into your sink to the waiting garbage disposal! There is no lip to catch all of the dirt and there's no area for grime to build up over time. Everyone loves an easy cleanup and decreasing the surface area for bacterial build up is always a plus!
These days it is probably the most popular choice of the two options. However, under-mount sinks are not recommended for laminate countertops because of possible water damage, but they are perfect for granite. Many are of the opinion that under-mounts lend kitchens extra class and a sleek finish.
Drop-in sinks are the standard type of sink so they are popular for the fact that there are many colors and sizes to choose from. A plus for this type of sink is that all you need is a standard size hole cut in the counter top and voila its easy installation and less expense. However, at Restoneovation there is no up charge for under-mount sinks! For this reason, along with clean up and beauty, we recommend under-mount sinks with granite countertops.