I had a 26 year old furnace which was operating erratically due to several worn-out parts. Mat came to give me a price on a new one, and due to the condition of the old one, moved appointments to schedule an install two days later (in a true emergency, a single day turnaround would have been possible).
He showed up with an assistant, and they did a thorough, methodical job, spending most of the day in the house. A few minor issues were corrected a week later and all is well with the world.
The brand of furnace (Ruud) that they are selling reviews well and makes a solid impression with all the gadgetry you could wish for (fancy thermostat, wifi etc) available, unlike some other furnaces about which it's very hard to find anything with Google, or which look flimsy and badly designed with the covers off.
Mat did not try to upsell me. The old furnace was a single stage, 75K BTU/h or nothing. I decided on my own to upgrade to a two-stage model and I like it - being right-sized, it needs to run only on the low stage to maintain temperature in the house, and this is much quieter than the old one. Don't expect to be hard sold on a top-of-the-line modulating furnace here, unless you really want one.
I'm a geek who really likes to know how his house systems work and who's not above fiddling with dip switches to tweak things to my liking. Mat is just fine with this and took the time to explain everything even though this added to the install time.
Mat had been recommended through word-of-mouth (mutual friends) which is how I like to find my contractors, and being a small outfit, the nice guy who comes to make the sale is also the guy who comes to do the work, unlike with the big outfits.