Finally getting around to writing this review. Bottom line: Don't waste your time, there are tons of other tile places to choose from. We had 2 issues: countertop and backsplash tiles.
In mid-November 2014, we just had our brand new kitchen cabinets installed and now it was time to install a new quartz countertop. We decided to shop for a CNC cut Ceasarstone countertop. After getting a few quotes, we decided to do business with Keramin because they had guaranteed that we could get 2 joints (most other folks quoted 3 joints) and while their quote was slightly higher, it was competitive. One of the the installers came to take the measurements, he was polite and friendly. Everything went well until the day of the installation when one of the countertop pieces was cut too big and they were not able to get it in the house (we have a 2200 sqft house with a decent size kitchen). The installers were very kind in trying to find a solution together, but the only real solution was to either cut a new piece (and get 3 joints) or take apart the kitchen that had just been newly installed. When I called the owners at Keramin to discuss how to solve the issue, they told me that I had to pay another a few hundred dollars for the new stone piece. When I refused to pay more for their mistake (they had my $1,250 deposit), they said that it was my fault because I did not want to dismantle my new custom kitchen (really!). I even called the kitchen cabinet company to discuss the possibility of removing some of the cabinets to fit the countertop (I was willing to do it if it were possible) . The kitchen cabinet company told me that it would be a grave mistake and they had never heard of such a thing in 40 years in business, so we dropped the idea. We went back and forth for several days (costing me more because I had booked other trades that were waiting for the kitchen to be finished to do their work). In the end, after unnecessary stress, back and forth, heated exchanges and wasted time, Eddy agreed to pay for the piece. When the installers came back, they did a good job overall and were very polite and apologetic. The countertop looks good and they did a really nice job with the joints. After this ordeal, we decided to give Keramin a second chance and buy our backsplash tiles with them (fool me twice...yes I know). When we received the delivered tiles, we noticed that they were different then what we had seen on display in the store and unfortunately the color did not work anymore. When we discussed the issue with them, they got very aggressive (we had now become annoying customers) and told us that it is normal and tiles will look different depending on the batch. To avoid anymore pain, we just payed the restocking fee and returned the tiles and were disappointed again. In the end, I give Keramin a generous "2" mostly because the installers did a good job and were a pleasure to work with. The real problem was with the owners.