Summary: This is a great scenic and informative tour if you don't have a lot of time (or your own car) and want to experience some of the beauty of Oregon not far away from the city! Worth the price for sure!
I didn't have my own car while visiting Portland, but I still wanted to see some of the beautiful outdoors not far off. After researching my options, though I don't often do tours, I signed up for the Gray Line half-day tour of the Falls and Gorge. It helped that one of the pickup points was very convenient to me, since 8:30 is painfully early when I'm on vacation.
The bus was clean, comfortable, and perfectly air conditioned for the summer weather. Our tour guide Brian shared great history and also took great pics!
I would have loved to have more time to do a longer hike, but this tour was a useful introduction so I know what's worth coming back to!