I have EAP. It has exactly two practical uses:
1. Being able to do a motorway journey without a non-stop bing-bong bong-bing bing-bong (repeat until crazy) as you change lanes.
2. Being able to put the car in a space slightly too small (although you basically have to be standing on top of the car to do this).
For £3,400 it's a rip-off. You can pay an additional £5/month and get a better implementation with Ford Bluecruise. The irony is that Tesla think they're going to licence Autopilot to other manufacturers, when I wish they'd take the Ford system and use that - smooth, accurate, happily passes traffic on the left when it's busy, doesn't panic brake for other vehicles, and if you flick the indicator on to change lanes it handles it SO smoothly and accelerates towards the car in front to help you pull out. You don't realise how erratic Tesla Vision is until you drive another car.
On the other hand ever other manufacturer is five years behind Tesla - at least - from a powertrain perspective.