I've done several, but none quite that far. My longest (so far) was 1000 miles round trip (Dayton to DC), and just today I got back from a 900 mile trip (Dayton to Rochester).
Advice: Plan in advance. Use ABRP to help plan the route. Enter your model car and it will suggest charge stops. Use PlugShare - EV Charging Station Map - Find a place to charge to make sure recent checkins at the suggested chargers are good, and to identify nearby alternatives just in case. So far, I've not had any significant issues and not had to use any of the backup options. It gets easier with each trip.
Advice: Plan in advance. Use ABRP to help plan the route. Enter your model car and it will suggest charge stops. Use PlugShare - EV Charging Station Map - Find a place to charge to make sure recent checkins at the suggested chargers are good, and to identify nearby alternatives just in case. So far, I've not had any significant issues and not had to use any of the backup options. It gets easier with each trip.