Giving them to stars only. I bought a Groupon to use this best for two days while my husband and I were in town for his convention. We went to get on the bus the first day and waited for an hour with another couple before my husband and I decided to head down to the next stop. There, we found a sign that said the bus wasn't running this day because of a marathon. This information might've been helpful at all the stops since you don't know where someone's going to get on. Or perhaps if someone had answered the phone when I tried to call 10 times. They did call me two days later and after I explained what happened, no apologies nothing. The tour guides seem to have secondhand information and mostly just gave their own commentary and jokes which was fine I guess. The best part of the bus was the open air top which I got to find out the next day when I actually got on after another hassle. We went to the stop, there was no room on top. We got to the next stop for people got off and quickly went up top. Where we sat for 15 more minutes before they told us we had to get off that bus and board another bus. I probably won't ever use a big bus tour again.