I hope you have a great time in Tuscany! I went on the tour 3 years ago when my mobility was better than what it is now. The hotel is basic, but very clean, and the staff are great. The food is very good, and the drinks measures are awesome. 🙂
It's a fairly busy holiday, with some early starts, especially to Sienna, but you see so much, in the time that you are there. I would recommend going n the optional trip to Elba. It's a more leisurely day, the trip on the ferry is fun, and the island itself is so nice.