This was an excellent tour! There are a couple moments when the biking requires you to be in better than average shape. We did stop here and there to see sights and to catch our breath. I met many wonderful people; lunch was excellent. I learned a lot about the Wachau valley and its wines. The tastings themselves were also quite enjoyable. I would definitely do this again. The only drawbacks were that we had to run to catch the train at the end (we were late in getting back into town) and that my muscles were sore for a couple days afterward.