Does anyone have the Kohler undermount 25" cast iron Riverby sink? We are considering it, but I worry that it will be too small for our only sink in the kitchen. We are limited by a 30" sink cabinet, so can't go with some of the larger Kohler cast iron options, and we are set on a deep, single cast iron basin.

Will the smaller riverby be sufficient? Or are there other undermount cast iron options that would fit our needs? Our kitchen is only about 11.5x12.5 feet, but we don't want to end up with a sink that is way too small!

Thanks.