It is great to see GM moving
It is great to see GM moving forward with setting up an EV charging infrastructure.
As with other EV technologies, it does require a vehicle with a matching onboard charger that is capable of receiving this charge without damaging the battery.
CHAdeMo looks problematic today, but when it came out there was nothing else that came close. It's biggest limitations were that CHAdeMo only worked on Leafs and Mitsu EVs, and the Leafs could be damaged by the quick charge, and the Mitsubishi EVs had a 62 mile (max) range. While it is exciting to talk about upcoming GM and VW/Porsche fast charging networks, the biggest working EV charge network today is still Tesla's, and it will be several years yet before these new charging networks get installed and running. One big point that is often left out of these discussions is the fact that the actual charger is built into the cars. So on top of the fact that my Volt and ELR's standard charger plug is incompatible with CHAdeMo, DC chargers, superchargers, and now XFC, even if it could plug in, the internal chargers max out as 3.3KW, or about 11 miles of charge per hour.
The Bolt's DC charging is MUCH faster, and hopefully GM will make the plug compatible, and allow the XFC system to maximize the Bolt's charging system for current models. But usually manufacturers are trying to sell you tomorrow's car far more than supporting yesterday's technology. So in addition to them needing to design and build this new system, and get them installed everywhere, the cars have to work with them, and ideally they will work with other EVs as well. Plus we have seen with the new Leaf that some battery packs have problems with fast charging repeatedly, as well as slowing down as the charge reaches completion.
Personally, I charge at home 99% of the time overnight, and it is no problem. It does look compelling to read about upcoming cars and chargers that are capable of charging 180 miles in 10 minutes, but I suspect that it will still be several years until that technology filters down to my budget level.