The crew working at my house was very nice and accommodating, but after they left, I found a slow leak and a P-trap they installed and a separate drain line that they were working on developed a crack and they try to seal it with silicone without telling me. Luckily, I have the DIY skills necessary and was able to cut out and repair the section of damaged pipe, but a less able homeowner would have been left without a usable sink.