We have returned from our two week visit to the UK. We spent the first week driving around the countryside, second week in London.
Based on recommendations here, I had purchased Oboz Bozeman Mid Waterproof shoes. These turned out to feel like too much shoe, too heavy. (I discovered this after my return window closed, so will probably try to sell them somewhere)
Next I tried the Oboz Bozeman Low and the Oboz Jeanette Low. These were very comfortable, with the Jeanette being the lightest weight. I decided to take both on the trip.
We averaged 4-5 miles of walking each day during the first week (2 days in Bath, climbing Glastonbury Tor, Cotswolds, climbing Dover's Hill, 3 castles in Wales, and a day in Keswick). During the London week we averaged 8-10 miles of walking each day.
The shoes performed wonderfully! They were supportive, comfortable, and secure. They did not look out of place with the merino dresses/leggings that I wore daily.
Final verdict: Highly recommended.