The Osix has been rock solid for me. I programmed it to fade on and off in the morning and evening and then to use the moonlight settings which my wife loves. It's truly been a set it and forget it piece of equipment.
I haven't had to do much more playing with it after that, I have been considering adding another 2 light bars to my setup but I think I'm going to wait till the SPS are getting bigger. At some point I'll also be upgrading the flow with another 1-3 gyre pumps so I'll probably be doing the pumps and light upgrade at the same time.