GasGuys.ca was extremely friendly and professional, and accommodated our full-time work schedule by starting at 5:30pm. They stayed until the job was complete, and made sure to walk us through how to use our new stove. They were forthright about all costs beforehand (our installation was more expensive because we have a 48" range) and they were really knowledgeable.
My rating of 4/5 on satisfaction is because while they were drilling through our tile in order to run the gas line, they realized they couldn't get through to the other side (hitting brick or a joist or something) and had to drill a second hole through our brand new tile floor, which of course we did not appreciate. They explained that they weren't able to get precise measurements due to the house being askew, were quite apologetic about the hole, and even went out right away to buy grout of a similar colour and patched it up. So we do appreciate that, and since the grout patch is hidden underneath the range, I would give a 4.5/5 if I could, but I still feel extra care could have been taken (measure twice cut once) to only drill one hole into our newly-laid tile.
Despite this small thing, I would absolutely hire these guys again, as we still need to run the gas line out to our BBQ at some point. We have dealt with A LOT of various types of tradespeople over the years, and most of them aren't as friendly, professional and honest as GasGuys.ca