I've had one experience with an Electrify America charging station, and outside of the charging speed, I was less than impressed. Only 1 of the 4 stations was operable, and that took an hour of remote support to accomplish. A look at Plugshare posts reveals that what I experienced is not an anomaly.
It will be interesting to see how well their stations are maintained. I wasn't impressed with the quality of the connectors (it was a couple of months old, and they had paint chipping and felt sorta cheap). Being that EA exists only because of a mandate due to VW's criminal activity, my guess is it's truly a toss up whether they actually care how successful they are. Until I see impressive, long range, VW evs on the road, I'll be a skeptic.
Fast charging can be expensive, even with a Spark, compared to home charging, and current equivalent gas/diesel prices . We only have Greenlots and EVGo here in Charlotte, NC, and I avoid EVGo like the plague, unless I have no other choice (EVGo=35¢/min, charges you during initializing (40 seconds or ~23¢), and 100 amp max vs Greenlots=20¢/min, only starts charging you when you start receiving juice, and delivers 120 amps max). How Greenlots is able to charge half what EVGo/EA do, is a mystery to me as well.
2015 Spark EV w/ DCFC 48,XXX miles
Purchased 1/20/18 w/ 16,5XX miles
0-40k mile efficiency avg - 5.3 mi/kwh
2019 Bolt EV w/ DCFC 73,XXX miles
Purchased 3/16/19 w/ 87 miles
Lifetime efficiency avg - 4.8 mi/kwh