Without faster charging, you can't do long-distance travel (nobody wants to stop for 4-8 hours in the middle of a road trip to recharge), so the only value they offer is for longer charging sessions while the driver is already in the area for work/shopping/etc. However, even then, you can't really rely on their availability, since it's always possible someone will already be there tying up the station for an 8-hour stretch...so they really aren't terribly useful or convenient for the vast majority of EV owners.
I would argue that the only charging network out there that really makes sense is Tesla's Supercharger network: it actually charges fast enough to make road trips practical, is generally quite reliable, and typically includes at least 6-8 stalls per station to avoid congestion during peak travel times. This gives Tesla a huge competitive advantage over other EV manufacturers, and I think it'll be a long time before anyone catches up to them in this regard.