I drove over 700 miles over the weekend I had the EAP. It's good to have it, but I won't pay so much for it. So got a refund. Main concerns:
1) The constant nudge required to the steering wheel and its penalty. I understand keeping hand of the steering, but nudge? Why?! Perhaps they can take idea from some later BMW's which comes with the ACC radar sensor, they have some sort of capacitive sensor on the steering, I think.
2) No regard for others joining the motorway.
3) Didn't adjust speed in the roadworks zone, neither it slowed down on low speed section of the motorway most of the time. At times when it did, it was on the A road and was done much later when the speed limit changed.
4) No action taken for motorway change, no lane change prompt or any suggestion for the upcoming exit.
5) As others have said, auto lane change is pointless.
6) I found it too buggy at times where it wasn't detecting car in front up until quite late.
7) That unnerving feeling of someone else controlling the steering, added with the resistance when overriding as if you are snatching it off someone.
8) Didn't get chance to try summon, however I was prompted to do auto park once in a reverse bay parking and it was impressive.
Overall I won't be comfortable letting it drive on it's own. The slight effort of driving taken off by AP is shifted to constant worry of checking if EAP is doing the job correctly for you. Must add the TACC is good but all complication is introduced by auto-steering. I would say it is good but not worth the money I need to pay to have it. Having said that, next time I buy another model I would ensure I get with the car and not required to pay so much extra for it.