I took the Snoqualmie Falls and City Tour and it was fantastic! Terry was the driver/guide for the tour and he couldn't have been nicer or more helpful. At the more scenic spots (i.e. the falls, the Japanese garden, etc.) he gave a few quick tips to help us take better photos. I have a point and shoot digital camera, but his tips definitely helped me take some fantastic pictures.
The stops on the tour are all great and we never felt super rushed to get back on the bus at each one. There was plenty of time to see everything, stop at a restroom, buy something at a gift shop, and to get all those great pictures. My only regret is that my husband didn't get to come with me on the tour (he was busy at a convention that day). But, if we ever come back to Seattle, we'll definitely take another tour with Shutter tours and my husband will definitely come with me.