We love our new Kraus sink.  Our plumber use the drop-in top mount and fits perfect.  We recommend getting the Kruas faucet to go with it, that is a straight line design with built in sprayer and goes perfect with the sink, much better that the curved type faucet.  The new sink and faucet really does enhance our kitchen and we know that we made an excellent choice.  Very good quality and a great value for the price.