It probably doesn't help that it has bugs. Sometimes my netbook will go through a horrifically jarring transition full of banding and a very obvious change in tone, it seems like sometimes flux gets a little stuck and then rapidly catches up.
Flux on my MBP is if anything even less predictable.
I also found when moving to my netbook to my MBP that I had to make very big changes to how much flux could change the colours - I have no idea what makes my previous settings so annoying on this computer, there's too many diferences between them to be sure.
On my MBP I completely ignore their recommended settings for lighting type. I picked the tone by adjusting the settings until it didn't feel like the light from my screen was physically attacking my eyes, which required a surprisingly small change in colour.
I don't think it's the slow setting. I tried it for a few months, and I did use the slow setting, but just found the washed out colors annoying. Regardless of the lighting in the room. I even tried forcing myself to keep it on for a couple of weeks straight, figuring I'd get used to it. No dice. It was usable enough, I just missed the colors and didn't really notice any difference as far as eyestrain.
Flux on my MBP is if anything even less predictable.
I also found when moving to my netbook to my MBP that I had to make very big changes to how much flux could change the colours - I have no idea what makes my previous settings so annoying on this computer, there's too many diferences between them to be sure.
On my MBP I completely ignore their recommended settings for lighting type. I picked the tone by adjusting the settings until it didn't feel like the light from my screen was physically attacking my eyes, which required a surprisingly small change in colour.