Eugene did a magnificent job recutting my granite countertop to allow for an undermount sink. The end product was beautifully polished and cut perfectly. I was very hesitant to do have the job done due to the amount of dust it creates in the house.
I took many precautions including installing a zip wall, wrapping the rest of the kitchen in poly and renting an air scrubber. YDI does great work, but preparations is on you.
I highly recommend this company and love my new sink.