The sink in and of itself is great, but mounting the sink was challenging. Unlike round vessel sinks which come with a mounting ring, Kraus provides no mounting support hardware with this sink. When we called them, they suggested using another rubber drain washer between the sink and the counter. Without some type of mounting pad, the sink will wobble and rotate. My fix was to CNC machine a 4" x 5" mounting base that would match the exact profile of the bottom surface of the sink. My base also had a rubber pad that fits between the sink and the base, and an o-ring which fits between the base and the counter. My base functions exactly like Kraus's circular mounting rings for the round vessel sinks, it is just rectangular and machined to match this sink. Once installed, the sink was rock solid and well supported. I made extra in case I screwed one up, so anyone who wants one can find it on ****** under ******************. Overstock may delete this post since I am mentioning ******, but this machined base was the only way to really mount this rectangular sink with a professional look and I figure is someone want to use my leftover pieces, what is the harm.