Having used Viator in Amsterdam and London in the past I did not hesitate to book 3 tours during our brief stop in Lisbon. The first two were superb, starting with a 4 hour city tour with a fluent and informative guide who gave excellent commentary and provide several well chosen photo-ops. Our second was avery full day to Obidos, Nazareth, Fatima and Batalha. Our charming, fluent and incredibly knowledgeable guide, Dorrita, made it first class experience. The third tour was NOT the charm. Lisbon by night and Fado was mostly a waste of time and money. The guide spoke very haltingly in English and spoke 3-4 times as much to the Portuguese customers as the English. There were no photo-ops and she failed to mention several key locations that we knew about from our first tour. The restaurant was in a very unattractive neighborhood and clearly had a different and much inferior menu for 'bus' people serving us a rubbery, overcooked piece of fish. The only good part was the entertainment. To cap it off we spent the better part of an hour travelling around the city getting passengers to their hotels and when it came to our turn the guide tried to get us to leave the bus when neither she or we were sure how close we were to our hotel so the driver could avoid going around a few blocks. This was 11:30 at night!
I look forward to your reply.