The Ikhanda has -20% city maintenance. With a courthouse it's -70%. It is also exceeding cheap at 25

.
So, you can place
lots of cities without having to take as much care with
how far away they are placed. In fact I would be tempted to shoot for some far away sites just because it would feel so good to put in an ikhanda and probably "get back" a couple

just like that. Once corporations come into play the amount of cash you are saving for that pidly 25

investment is astounding.
I'm not speaking from play experience with that civ, but I've heard as much on these forums and it seems intuitive to me.