We had a marvelous sunny day for our trip to the countryside. The guide (and there were just the three of us) was extremely informative on all sorts of aspects of Polish history, although not much for small talk. We visited the Radziwill Palace (interesting) and Chopin's birthplace, which was very crowded, but beautiful, nonetheless. Otherwise there really wan't much else to see.
There were about 10 of us in a little mini-bus and there were several opportunities to get out and walk. We seemed to cover just about everything of note in the city. The guide spoke excellent English, was extremebly informative and very entertaining. At the end of the tour we were able to get out and return to areas we wanted to visit in more depth. It was an excellent way to see the city if time is limited.