We had a 2-days-safari with Adventurer Explore Africa to the Masaai Mara and have been fully satisfied. While we had a job in Nairobi we decided one day before to go, no problem with James Omondi.
We've got what they promised and had really a great trip. Our guide and driver Sam was a pro indeed and a pleasant man.
We had a lot of fun.
So this is a clear recommendation: make sure to tell them what you want and there is nothing against to have a great trip.