Just to add my 2 cents to the riddle:
I've been posting monthly cost reviews (will add December soon) here ...
Financial costs of running the XC40 for September
It gives an overview of savings in fuel/energy costs our household has now (a C40 and Toyota Yaris hybrid) compared to previously (V40 D3 and Toyota Yaris hybrid). We are a family of 4, I work from home and drive the kids around and my partner uses the C40 for her work (which includes lots of driving in the region here). Just to give you a general idea.
With those kms, kWhs, and € you can sub in any to get an idea of what other situations might cost ... e.g. if we only did HPC charging at €0,55 for those kWh would we still save money compared to the previous situation etc.?
My personal conclusion ... I'm okay with paying higher costs at HPCs (EVgo, EA, Ionity, Zunder etc.) for those long trips because in general, our savings add up to way more than what those longer trips cost extra (maybe 6-12 per year in our case).
As for infrastructure ... around where we live it is poor ... but I really care about how it is starting at 200km away (say 2 hrs driving) from our home, and it is average ... do I wish we had more options available to us? yes. Do I wish it was better around us? Yes, it would help others get here easier.
In general, I see the bottleneck for EV adoption the general charging infrastructure, not only the providers, but here the government really has to streamline applications processes etc. I see a lot of charging locations in construction ... for aeons (well, months really) ... in my region. All held back by paperwork. I'd like to get to a point where there are HPCs every 20km or so. This means I can choose where to stop (optionality). At the moment I
have to stop at certain locations because the distance to the next is too far.
Also, a lot of the free charging (usually up to 22kW) available is almost always taken up by PHEVs ... so I'd be happy if those providers would start charging money for charging, hopefully, that would get rid of PHEVs blocking up slower chargers at shopping malls etc. and make it easier for EVs to get top-ups (for low costs, say €0,10-0,20/kWh) at those locations.
Oef ... sorry ... this got a bit longer than intended ...