Just finished unboxing & setting the Watch up. Initial observations are that it is quicker to set up & noticeably faster than my existing Apple Watch Series 0. Also, I really like the band (black/grey)...very subtle & will be fine to wear with casual clothes, not just when running. I am a keen runner, so mainly ordered the Watch to replace my basic Garmin Forerunner 10, but other than when I am wearing a suit for the office (or black tie events), I think I will be opting to wear Apple Nike in place of my Stainless Steel Series 0 for 'everyday' dress.
RE the UK retailer - they shall remain nameless, as I don't want to get them in to any trouble with Apple. In fairness, I think they have made a genuine mistake
Anyway, not the best quality, but some unboxing & set up photos attached