How good was the tour??? It was 100+ degrees and we STILL had a great time! The staff was amazing. The tour guide was always sitting on the top deck (in 100+ degrees remember) and you would have thought it was just another day. They were always happy, cheerful, friendly (kind of sounds like a boy or girl scout) and making sure everyone was having a great time. I will (and have already) 'pitched' the company to everyone I have talked to about the trip. On a five star rating...you guys(and gals) are a six! Thanks for a great Chicago tour.