Yeah, if you don't have a way to have a 240v plug in at home, especially if you aren't close to other chargers, that would be rough. I know of someone who bought a mach-e but lives in an apartment with no way to charge it there. Not a smart move.
Our bolt came with a level one charger, so 120v that can charge at 8 or 12 amps, you tell the car what to charge at. But after some searching this same charger can be run at 240v so I hardwired it and now I can charge at 240v at 12 amps which so far has been enough to charge it easily overnight. My garage only runs off of a 30amp subpanel so I wouldn't want to do anymore than that anyways. It also helps that my garage is heated. I did install a 40 Amp level 2 charger in my machine shed if I need, although the bolt can only charge at 32 amps.
On average we have been getting around 4 miles/kwh in the nicer temps but that drops down to 3 or less on the few days that it has been colder. I have seen up to 6 mi/kwh but that didn't last long. We bought it with just under 25k miles and the trip had never been reset and the average was 2.1 mi/kwh. We have put a little over 1000 miles on it and that average has gone up to 3.1 mi/kwh which seems insane. My guess is that it was kept in the cold which brought that number down.