I've done them all, I don't mind a tent, rough built shack or lux rondaval, as long as I am not sleeping on a rock. Nope, I want a real bed. Especially after the airplane ride, my back gets pretty kinked up.

Personally, since I do travel alone I find the en suite shower/toilet a real nice bonus when they are available. I really don't like a middle of the night walk in the dark to take care of business. Especially in hippo and ele country where they are often night time visitors in camp.