Another couple weeks and the leaves should be in full color. They were just starting to change, but still a lot of green.
If you've never been, I recommend the audio tour and the rooftop tour. The "behind the scenes" tour was also interesting, but if you only had time for 2, I'd pick the audio and rooftop tours. We crammed all 3 in one day. If we make it back, we'll spend time doing the other activities like horseback riding, walk the trails or ride bikes on the trails. Also, we didn't have time to tour the winery. However, we did buy some wine. :)