First of all, big thumbs up to Patrycja from the WPT1313 office, who went out of her way to secure us a spot on the only day we were able to take the tour, although it was fully booked. Our guide, Marcin, was very knowledgeable and had a great sense of humor. It genuinely felt like exploring the city with an old friend. Driving the tiny Fiat may seem a bit difficult at first, but once you get the hang of it you start wishing the tour were longer The shot of vodka at the end was a nice local touch. All in all, I can't recommend this highly enough as the most fun way to visit and learn things about Warsaw.