We took the 4 days 3 nights tour to niagara falls, washington dc and Philadelphia on 11/12. Our tour guide Kenny Xin was really good and very approachable. He provided all the information very clearly and in a timely manner. The whole tour was very well organized. The accommodations and food stops were perfect for everyone (vast variety of food available everywhere). I just felt the bus was not comfortable enough. Leg space was not enough and seats were just ok. The itinerary did get too tight at some places (only 25 min for corning glass museum if you see the glass making show) and 1 hr at most for any ticketed museum. That was simply not enough to see such places. But I guess considering how far the places are there's no getting around it. Overall excellent tour for the price you pay and very good for people coming from abroad who can't drive themselves.