I find ABRP to be overkill for planning trips. In fact, my planning generally only involves using Plugshare ahead of time to scout the routes I plan to take to determine if DCFC is adequate.
While at each charging stop, I look ahead with Plugshare to find the next stop and charge to enough to make it to that stop with 30-50 miles of buffer. I rely on experience/intuition to guesstimate how terrain, temperatures, wind and speeds will change the outcome of the last leg on the upcoming stretch and adjust my 30-50 mile buffer accordingly. When there is doubt, add 10-20 more miles at the current stop, etc. As long as you consider what factors lie ahead, and how they may differ from past legs, the car's range estimates are accurate enough to go by.
Windy and Flatest Route are good apps to have on hand. They can give you more accurate insight into how elevation and wind may impact your next leg on the trip, and only take a minute or two to use. On familiar routes, I don't typically use these additional tools, but on unfamiliar routes, they can reduce anxiety of my passenger (wife) considerably.
Having done many long trips in the last 4 years, I have witnessed considerable infrastructure improvements.
This summer, we will begin to realize benefits from several infrastructure improvements. Many CCS owners will be using Tesla chargers (Ford, Rivian, Volvo, Polestar, GM) relieving some congestion at CCS sites. The GM/EVGo projects at Pilot/FlyingJ are going online (these are great options by the way). Mercedes and Chargepoint are going online with many sites, and Ionna should start going online later this year. NEVI funding is helping accelerate these projects, and is providing some incentive for sites willing to work with Electrify Commercial (EA's commercial division) to add EA locations above and beyond the EA "mea culpa" plan.
Meanwhile, all of the CCS networks are feeling pressure from competing with Tesla, and are taking steps to address reliability. I notice EA is actually starting to show charger status when units are offline. Even though this info isn't reaching Plugshare (yet), a quick look at the EA app can help. And equipment makers are taking steps to refine their design. EA is apparently getting ready to adopt a new supplier with an excellent reputation in EU, so that should help. Many equipment makers are adopting modular, easy to service units, along the lines of what Chargepoint is doing. And new equipment makers are stepping in to the game, some of whom have outstanding reputations for similar products sold in tangential industries.
Last year was a particularly troublesome year for EV travel. Prior years, available chargers were generally never a problem. But last year, the combo of poor reliability and increasing demand at EA sites made it fairly common to have queues at many sites in urban areas. We are finally starting to see some EA locations expand with additional chargers, and additional EA sites popping up in these high demand areas. In my travels, I have seen that most EA sites were originally designed with at least 2X capacity in mind, the equipment cages have room for more equipment, and the conduit is already in place. Let's hope they take action on this in high demand locations.
All this to say. I am optimistic about EV road trips getting easier. On East West routes, EA has several good options, and others are stepping in to add additional capacity. There are still a lot of routes and regions with more difficult infrastructure shortfalls on North/South routes, but the progress is steady in many of these. And by all means, avoid WVA, MT, WY, and the Dakotas.