We found this tour to be exactly as advertised: a brief overview of Santa Fe for a small fee. The tour lasted an hour and 15 minutes, so the older folks and younger folks didn't feel the seats were too hard for that timeframe. The tour guide provided a good overview about Santa Fe's history, architecture, geography, and art. In that short of a timeframe, you couldn't get more detailed.
Our guide didn't try to overly promote any restaurants or shops. He did show attractions (museums, galleries, etc.) that you could go back and explore on your own later. The tour helped me find my way around later, in a town that's very confusing to drive in.
I liked the open-air tram because the weather is nice and mild. Half our party got lost looking for the tour starting point, so a guide walked over and got us where we got lost. Now that's great service!