London is the best! The interview was very easy and the Embassy staff really friendly. Worst part was waiting outside in the queue for 2 hours in the freezing wind.
The interview itself took under 3 mins, the consular officer never bothered to check original employer letter, pat stubs and tax forms. Just the photocopies were enough. When I offered to show our photos together, she replied "No thanks, everything looks fine to me...Welcome to the United States!"