I was sent incorrect product. Thinner than the one I ordered. I didn't notice at first and the shop pushed the blame onto their supplier and said that since I already used some of the package they can't split the one they have to exchange the rest (I needed at least some thicker slabs). Funny thing is when I started laying the slabs, lot of them were discoloured, few were broken but I assumes it's the way with the discounted stock (that's what the website said) and I had ordered more to account for that. But apparently I got new, more expensive stock so I find it mediocre at best. In terms of customer support, they are at least replying really quickly, even if they don't have any good solutions to my problem.