My Model 3 has a real world range of about 420km (maybe 300 if I constantly go 160km/h). For long travels this is more than I need, as I usually travel with the family and about every 2 or 3 hours I need a break. Plug it in, eat something, your good to go an additional 200km with the charge you added. It also takes me to work and back for 4 or even 5 days. When I could not charge at home I could at work or while grocery shopping. I prefer this over waiting 3 minutes at the gas station doing nothing else than holding a dirty hose.