I'm in the purchase decision phase at the moment. I was initially looking at the Premium Pack, but I'm now virtually decided on the Premium Edition. The main things I would miss would be leather, the 360 camera, and the upgraded headlights.
I'll be the only driver, so memory seats are not an issue. I don't do that much night driving on minor roads, so the lights are probably not a major thing. I can definitely live without window blinds (electric or manual), illuminated scuff plates, the seat moving for me to get out, LED ambient lighting, and sequential indicators.
To save £4,500 on the list price, and a further c £1,500 on VED over five years, I think I'll go without leather and the 360 camera, and try to remember to push a button to fold the mirrors.