You will either need to only charge once a few days, or if you are lucky, charge overnight at your home or during work. No car will need to be charged every 60 minutes.
Yes, you'll need have enough battery to get there or charge before you leave.
> That time is very good when one recharges at home
You won't get that charge time at home unless you decide to put in a 350 kW charger at your house, which will be expensive.
An 18 minute charge time on a fast charger can support about three cars per hour. There still need to be better batteries that can sustain higher C-rates to make fuller use of the existing 350 kW chargers and future 400 kW chargers and beyond.
For a future, high C-rate battery with 100 kWh usable capacity, 10 to 80% would be 70 kWh. If it could charge 10-80% at a flat 350 kW then that would take 12 minutes. At 400 kW it would take 10.5 minutes.
Battery swaps can currently be done in 6 minutes. Swapping in a 100 kWh battery charged to 90% in 6 minutes is equivalent to a flat 0-90% charge curve at 900 kW:
The fast charger is for road trips - at the moment, the number and reliability of high-speed charge points is probably a bigger constraint than the relative speed of this model versus others.
In a city where people park on the streets because there are no or not enough personal parking slots (very common in Europe, don't know in the USA,) it's either a (metered?) charger for every public parking slot or a boring 20 minutes stop every few days.
Having to wait almost 20 minutes on a 60 minutes commute is far from ideal.
That time is very good when one recharges at home or during a long trip or at destination (office / mall / etc) while doing other things. But in the last case it takes away a charging spot until the owner comes back. How is that managed now?