Our tour guide, Eva-Maria was very knowledgeable and she told us about the history and stories behind the all places we visited. She also very patiently answered all our questions about everything, from the local education system to the economy and property prices! She also recommended many things to see and do, and (more importantly) many places to eat and drink during our time in Tallinn. We tried many of these over the next few days and were not disappointed once. The tour was very well organised and all the places we visited were expecting us, and the 2 hours flew by. I can highly recommend this tour with Estonian Experience and Eva-Maria. Note: The tour only covers the lower part of the Tallinn old city, as the beer stops take time. If you are not fussed about beer, I would recommend going on Estonia Experience’s 2 hour walking tour instead.
More detailed overview and photos of the tour in a blog Diary of a Tourist.