As it is, there have been more Volt fires than Tesla fires. In three separate tests the Volts tested by the NTSB caught fire. There was at least one Volt that have caught fire, one after it was rear-ended and the 12v battery caused it to burn up, completely burning up the interior of the car. None of the Tesla fires affected the passenger compartment.
Since Tesla's change there has not been a single new fire in the Tesla. Tesla is losing money, but they're doing what they need to do. All that money is being spent on growth which is required. They're making a 28% profit on every car sold and that money is being folded back into the company. The money is being spent on designing and tooling up the model X and model 3, which is exactly what they should be doing, as well as the gigafactory and building out their charging network, building service centers, etc. Given the demand for the model X (over 26,000 pre-orders) and their grid storage (sold out for the next year within a week), it looks like they're making the right choices.
The company is in a rapid growth phase. It would kill them to stop and try and be profitable now (which is what a short-sighted Wall Street CEO would do), since they need to look ahead to the future. Their future looks fairly bright given the high demand and customer satisfaction, especially given that they're doing virtually no advertising.
GM's Volt, while popular with Volt owners, has not been flying off the lots. It has been outsold by the Leaf, BMW i3 and Model S recently.
As for Ontario, I would not be surprised if they build out there in time. They're prioritizing their network based on need, building out the routes most owners need before building out less common routes. Their map of proposed chargers seems to be constantly changing, where I see superchargers popping up in places or along routes that were not previously shown. As far as cold climates, given it's one of the most popular cars in Norway my guess is that it does quite well in cold climates.
While the chemistry may be similar to laptop batteries, the batteries are NOT laptop batteries. There are many differences in order to increase the longevity and reliability and to reduce costs. Fires are a non-issue. There were a few and Tesla went back and addressed the problem and there have been none since. The risk of fire is much lower than for a gasoline powered car. The instances that caused the fires were rather extreme when you consider one of them was due to the car plowing through a concrete wall at 110MPH. Everyone walked away from that, I don't know that you could say the same thing if that happened with a Volt, if it could even reach 110MPH. The other was from running over a heavy duty trailer hitch which stuck up like a lance. Given where it hit, it would have seriously injured the driver of a Volt if it had happened since it would have gone right through the sheetmetal floor and into the driver's legs. In all cases, the fires did not affect the passenger compartment and they were rather slow burning. The one with the trailer hitch was made much worse by the fire department, who cut a hole in the top of the battery pack.
As for shaky companies, one of those companies recently declared bankruptcy and had a massive recall over a problem that was known for years that killed and injured a lot of people. When the model 3 comes out I don't think there will be much comparison between the Bolt and the model 3. Tesla will have a huge advantage over GM since their cost of batteries will be significantly lower and their batteries will be smaller and more energy dense. Tesla's electric motors are also less expensive since induction motors do not contain any rare-earth magnets. With the skateboard design Tesla uses the handling should also be better and it should have more space inside. It also wouldn't surprise me if Tesla offered all wheel drive for the M3 and incorporated other technologies from the Model S like self-driving support. Tesla also manufactures much more of their own stuff than GM. GM outsources a lot of stuff that Tesla does in-house, like the infotainment system (which runs on Linux and uses the Qt toolkit for the GUI), injection molding of plastic and more. It allows them to be much more nimble than a traditional car company and gives them tighter control on quality and to address problems more quickly.
It's also cheaper to drive a Tesla on a road trip than a Volt. The Superchargers are free for Tesla owners to use for the life of the car, though for the 60 and 70KWh battery it's a $2000 option to enable the support. It doesn't cost Tesla much in electricity to do a full charge, especially for those charging stations with Solar. Tesla is also using their batteries for grid storage to even out the load.
As for time added to a trip? I just drove from the Bay Area to Reno and back. I stopped to charge and eat dinner. My car was fully charged long before I was done with dinner. On the return trip I stopped at a fast food place to eat lunch. My car was charged before I finished my lunch. After visiting some friends along the way I stopped at another place for dinner, again, the car was fully charged long before I finished dinner. Hell, I had to make a pit stop in Truckee. I added another 40 miles of range during that, and I didn't need to charge my car. In the end, I spent zero time waiting for my car to charge. My car spent more time waiting for me. If I do need to wait, I don't have to wait at my car. My phone will alert me when I have enough charge to continue on.