Terry is a former British Diplomat who worked in the Embassy in East Berlin before the Wall came down.
The tour starts outside the new Jewish Synagogue, there are other pickup points before this.
The tour is excellent value for money, given that the tour I was on lasted 8 Hours, so be prepared for walking at quite a pace, there are a couple of stops during the day though.
The tour guides are very informative and entertaining,not only taking you to the major sites, but some places that you would not find on your own.
I recommend you take this tour on the first day of your stay in Berlin, as it gives you an excellent insight into Berlin and allows you to work out your orientation quickly, saving you getting lost later in your stay.

