Hotel des Ducs was in a great location, and was clean with a friendly staff. I had a small double room, and it was pretty cozy (small), which was fine for me as a solo traveler.
It is conveniently located a block from the Palais des Duc and Place de la Revolution, and all of the shops and dining options in the area. The Dijon Ville train station is a 15 minute walk from the hotel, along the main pathway.
The only negative was the room size, but as I said it was fine for me as a solo traveler. Otherwise it is a fine option for travelers looking for 3-star accommodations conveniently located in Dijon's tourist area.