We have black pearl granite. Been in around 10 years and looks as good as the day it was installed. Easy to clean and doesn't seem to mark or stain. I would however not use black again as I think white would of looked much better. Granite being a natural product can't be matched up as easily down the track if you decide to add more benches and the like. Each batch can potentially be different.

I found this article when I was looking at benchtop material for a family member Porcelain sheets are the way forward, non staining and of no danger to the craftsman/maker Porcelain is more expensive than Quartz (both in raw material and in installation costs), but then so is marble. I am using a lot of Neolith in my house, so I shopped around to find a stone cutter who was crafty with maximising the use of each sheet of Neolith (to avoid wastage and minimise the number of sheets needed). It made a huge difference. My house was also designed around the sheet size - Neolith sheets are 3.2 metres long (so you can have a 3.2 metre benchtop or island without needing a join). You need to use 12mm (or thicker) sheets for benchtops. (Splashbacks and showers use 6mm thick porcelain sheets - Neolith does 2 different matching sheets for each marble design, so you can bookmark and pattern match the splashback). Also be aware that the marble pattern is only printed on the top of all of the brands of porcelain. If you want to continue the pattern on the “lips” of your benches, this needs to be a beveled edge (which you also need to do with quartz or marble if you want any thickness of “lip” to your benchtop). So you also have to factor in the stone cuts needed to create the benchtop “lips” when calculating sheet cutting and usage. I am not having edging on my benchtops and am instead going for the slim European look of “floating” benchtops. I am not worried that the 1.2 cm edge all the way around the benches will be plain white.

When anything goes wrong it’s what is written on the paper that prevails. If the quotation you accepted says drop in and that is the supporting document then you’re out of luck. A total redo would be at your cost. You may be able to negotiate that they do it at a discount out of goodwill.

I have a top Mount double bowl sink in my kitchen with stone bench tops. I don’t think it looks cheap.... AND, the second unused hole is not just “filled” by the plumber, but a “faucet hole cover” is installed and will sit almost flush with the sink surround. If you have under mount sink in your kitchen, how are you going to have dishes draining, before immediately hand drying. You will have to put some kind of draining board on the STONE, and that will look cheap. But if under mount sinks are included in the build, then go with that. But they don’t include somewhere to place pots and pans after washing and before drying by hand. Because you have stated that you are only having a single bowl sink in the kitchen.