I did the half day to Red Rock, Evergreen and Echo Lake. Meeting the tour guide, Will, was pretty straight forward (we met at designated spot). Will was pretty easy going throughout the tour. He made sure we were comfortable (for example, he would raise/lower A/C as needed). He had such passion and knowledge and kept us all entertained. When it got to Echo Lake, it was actually frozen. Will stepped onto the frozen lake first to show us that it was safe and I had a great time walking on it.
To be honest, I just needed a ride to Red Rock and saw that I could do it through this tour. But I was surprised how awesome the other sites were and glad I did this tour after all. I throughly enjoyed this and recommend it to others!
Oh, and since I went alone, I had Will take a lot of pics of me for me. And he takes GREAT pictures!