New York City, New York
Unfortunately the day we were in NYC it was very overcast but the staff did there best to reschedule. Definitely worth the money. I think there is also more viewing space here then Empire State Building.
The tour covered all the main areas of Berlin. Just be aware that the ticket bus has moved in Alexanderplaza if you intend getting on from that stop.
Prague, Czech Republic
The tour covered the main areas of Prague but it was late starting and with it only being 2 hours in length it was very rushed. Also the commentary was in both German and English so some places of interest were missed due to translation timings. Goof introduction to Prague but coordination could have been better .
The tour was excellent and a highlight of our European visit. Our guide was excellent both on the history and coordination of our route and safety. If visiting Rome this is a must do bike tour and you just need an standard level of fitness.