I had one from Corian, white color. No problems, but your mileage may vary.
I like it that it is seamless.
I would say a darker color may see more scratches in the long run. And different brands will get you different results

My next counter I want to try Quartz from Caesarstone but Im not aware of any integrated sink if there is any. I probably just put in a Stainless Steel sink due to lower cost

This is one you mean ?
No problem so far.

my i know where to shop those sinks?

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