Waleed was an excellent guide with a great sense of humor.  He was on time to pick us up, and communicated with us before and after we booked the tour.  He shared a lot of great information about Saudi Arabia and was very welcoming.  He even stopped by a store to buy us snacks and drinks/juices, which was really kind of him, as we weren't expecting any of this.  Waleed speaks excellent English and is very easy to get along with.