We took the 9am extended tour, with a stop at a Hogan where a lady was working with wool. The vehicle is an open truck with a roof covering that provided some shade, depending on which side you were sitting. If it was windy, I could see dust and grit being a problem, so I would strongly recommend to have a scarf or similar on hand to cover your face and sunglasses - even on a relatively windless day we encountered dust that other vehicles had thrown up.
Duffy was excellent in his commentary during the trip, pointing out various aspects of the region and culture.
The scenery itself is fantastic and worth the visit.