Thanks Jules8 for your feedback. I'm not too picky about spotting. This will be a bathroom used daily. I am glad to hear that there isn't splashing. I will be using a single hole Hansgrohe faucet. Thanks for the info about the slope, and as you've indicated it seems too shallow. I have a limited space for the sink in my vanity and this one provides a lot of interior space within the confines of my cabinet. If I decide to get another sink I will have to call the cabinet maker to double check the tolerance I have. The look of this sink is really nice though and I probably will stay with it.

There is also another GE Silicone II K/B Supreme that is "mold-free product protection helps keep the cured caulk mold- and mildew-free and looking clean for 10 years, with regular cleaning." Here is a link that might be useful: GE Silicone II K/B Supreme

Thanks! I figured out by talking with designer #1 that the dimensions of the 17 x 14 kohler 2210 sink, at its widest point includes what she called the flange, which lies "flat" against the underside of the quartz vanity top. This is what makes it 19.25 at the largest point. The part of the bowl that goes down into the base is 17 inches wide at its widest, and she was not at all concerned about it fitting. I can only assume that this will fit based on that. So then I went to the counter fabricator and they feel that that kohler sink will fit, but they will know for sure when they come to template. In that case, if it does not fit, they would use the the smaller 15 x 12 Kohler 2209 (17" at that largest undermount area). I looked at the sink while there. So I think it just depends on how high the draw box itself is to the top of the cabinet...and I would imagine the draw box wouldn't be flush with the top of the cabinet. I have an old style top mount sink so I measured my current sink opening and it is 15 x 10 !! So even the smallest sink i mentioned above is bigger than my current, so now I'm no longer worried about that! Whew, that's a win! LOL

We purchased this cabinet: https://m.ikea.com/us/en/catalog/products/spr/89032601/ I thought the guy at Ikea told us we could buy any undermount sink up to 24 inches but from what I'm reading, it seems like I have to chop 3 inches off that and restrict it to 21inches max. Is that right? Thanks!