We stayed at Kirurumu Ngorongoro Camp the night before our crater safari drive. After the noise we experienced at the sister camp at Lake Manyara we didn't have high expectations but found this site to be peaceful, have really good food and better tents (non permanent).
Its set in the Masi community and you can hear the clinging of cow bells.
The tents are comfortable, with plenty of blankets (because it does get cool) and the 20L hot water showers we experienced in the Serengeti.
The grounds the camp is set on is peaceful and relaxing. It was a good spot just to sit and relax.
The food here was also quite good. Its served at a large table so all guests can share their stories of where they have been and where they are going.