I bought quartz kitchen counters from Rona in 2011. Granite Worx is their installer. Their measurement person was very, very thorough. He arrived on time and did all of the measurements using only a tape measure and a square. He pointed out one location where my cabinet was not level which I was able to correct before the counters arrived. The installation crew arrived on time with 4 pieces of quartz and installed them incredibly well. Perfectly centred and level and the glued seam is almost imperceptible. Talking to the installer, I found out that in his previous career he was a land surveyor in Albania, so precision is very important to him.
Three years later, as part of a basement renovation, we decided go directly to Granite Worx to buy our bath counter and replace the upstairs laminate counter at the same time. They are a very busy company and we placed an order, but they never got back to us with a quote. After several weeks of no replies, we ended up just going to Rona and ordering it though them. Exactly the same price for the same product. Like three years earlier, their measuring guy arrived exactly on time and was done in minutes. We think they may have broken on of the pieces while cutting it, because they didn't arrive on the day we had booked for the install. When I called, I was told "we forgot to tell you that we won't be able to make it this morning but will come in the afternoon" We ended up booking them for another morning and the same crew as three years earlier arrived. They were quick, clean and accurate and we are very happy with the install. If it wasn't for their office staff not getting back to us on the order and then on the scheduling, I'd give them a 10. Their field crew is definitely worth a 10. But overall I have to give them a 8. I would recommend them if you have a big job. If your job is small, the office staff might not really be interested. The quartz, Hanstone, is made in Canada and is really great product. Unfortunately its price is going up, but I would certainly buy it again.