Yes, they started with 20 channels, due to competition, they've been upping the offerings, you can check from their website (Oooohhh Google! Where at though?). Quality depends on whether you can improve on their antennae (si hata the satellite dish has to be positioned well to have clarity?), but the supplied antennae should work well within Nairobi metropolitan area and the other two major towns. The quality is as good to satellite, the limiting factor is the channels are fewer compared to satellite.
Peter