We spent a few nights in Kicheche Bush and Kicheche Mara camps in July 2013, and also in other "well known" camp in Serengueti (Tanzania), in the same trip.
What we can say is that the service provided in Kicheche is simply the best it can be. No pretentions to be a resort, but the details, food, service, guides, cars with few people and the amount of different animals, including lot of cats a few meters out from the lodge makes this simply the best choise we believe it can be. We wish had stayed at least a 3rd night in each camp.
For the ones are deciding between both camps, Kicheche Bush has newer tends and better for couples, the Mara Camp is better for bigger families.
We were in both and we could se hundreds of animals, including the migration of wildebeasts (from Bush Camp).
You cant find better experience.