We did the Bucharest Highlights (2.5hrs) on day 1 of our trip and we were so impressed we booked onto the Communist tour (4hrs) the next day. Bike The City were flexible in accommodating our delay and planning our second trip around our timetable. The bikes were new and all good quality. Our guide Alex had excellent knowledge, clearly knowing his city and much more about the economic and cultural context. Alex adapted the tour to our interests and answered questions on a wide range of topics. As you can hopefully tell we highly recommend this.