We had a new kitchen installed, supposedly by experts, but the "granite" worktop that was installed is really really fragile. I had expected a granite worktop to be hard and durable, but this is almost not fit for purpose as a kitchen worktop. You only need to put a mug or plate down slightly too hard and it leaves a clear white scratch. I have an off cut and I can easily cut into the surface with a Stanley knife.
As for being marked by liquids, again it is a nightmare. If you don't clean up any spillage straight away, then it is highly likely to leave a mark. I did a test again on the off cut and blackcurrent cordial left on for just 5 minutes was enough to mark it.
I've had dark granite worktops in rented accommodation before and never given it a second thought, and they never marked at all.
This one is apparently called "Bianco perfecto" (it is a light grey, with lots of darker grey veins) and when I spoke to the installers they said it was actually a "quartzite" not a granite. Is this the reason it is so rubbish? We'd have never have gone for a stone worktop if we had known it was so fragile. Would proper granite have been better? Since this is the first time I've been told it was only quartzite and not granite can I get them to replace it?