We loved it! So easy and convenient. We got to see so much because of our pass.
I highly recommend the Go Chicago card. It is well worth it. My only complaint is they didn't run very late in the day. I think that was probably because of the time of the year. We went in November. But otherwise I would purchase this card again.
I think this is absolutely the way to go! I made the mistake of only purchasing a 1 day ticket only though, you must get at least the 2 day ticket! I have already recommended to this to friends planning a trip to Chicago!! I will definitely purchase one again when I make my next trip to Chi Town!!