undermount sink

We just bought our house a few months ago and the kitchen was renovated maybe 5 years ago. The kitchen sink is starting to have rust. My husband and I are planning to have it replaced with a new sink, an undermount sink. I like it better because they would not only look glossy and stylish but it is also very practical. The counter will be much easier to clean and unlike the traditional sinks, the sink will have no exposed rim in which residue can build up.