Good
Had a good safari with this company. Went to Ngorongoro and Tarangire during the two days.
Driver was friendly and did tirelessly drive the car the full day while talking about the parks and animals. He was able to answer all questions to satisfaction.
The tour started from Arusha and for 5$ extra the driver picked me up and later returned me to my hotel.
In overall I had a good experience and wouldn't mind doing it again. Be aware that you will spend about 9 hours per day sitting or standing in the car while it drives through the park or to and from the park.