The London Pass was great! It was essential for fast track entry. We paid extra for a guided Verger tour within Westminster Abbey which was definitely worth it. We had access to areas other groups or individuals did not have. The verger tour is administered by clergy of Westminster and are certain times during the day. We happened to go thru the cue and noticed a tour was within five minutes. It was a highlight for the trip. Tips: use the metro. It is easy and a quick way to get to several places; order your London pass early to have delivered to your home -- we spent 1-2 hours trying to find the London pass office. We stayed in Westminster which was a lovely hotel. However with only 3 nights here we would have been much better off to be in a hotel centrally located and next to a metro. Example Waterloo area.