My husband and I booked for Auschwitz Birkenau with this company as they have transport for wheelchairs. Maciej was our driver and he was so helpful and knowledgeable . Auschwitz is not really very suitable for wheelchairs so my husband went off with a group doing the tour while Maciej pushed me back to the vehicle and then drove me around the perimeter fencing so that I could see some of the site. We then went to a café for coffee (and he shared part of his pizza!) and he told me the history of Poland, speaking very good English. It was a very good day out for me thanks to him.
We then booked him to take us to the airport the next day. Again very helpful, pushing me to the terminal while my husband had the suitcases. We will definitely be contacting him on our next visit to Krakow.