My group of 10 friends just finished a great trip booked with Bernard at Lion Trails Safari.
Edwin and Jackson were the drivers for our 8-day Safari in four different Kenyan Parks. I cannot say enough positive things about the two drivers and the safari as a whole. From the start, Bernard was very accommodating and easy to communicate with. Once we were picked up, everything went perfectly and our drivers made excellent effort to please every one in our group of 10. The trip was a memorable eight days.
I would recommend staying in the Serena Hotels and the Sweetwaters Tented Camp was awesome as well. Food and atmosphere at these places was terrific. Ashnil were well located but I felt as though their staff and food was subpar.
Also - I recommend you get the SUV because they are better able to access good areas such as where leopards reside.