Very good
Great app to control ur brightness instantly like a light switch. You choose between 2 presets. So u can have a preset on low (eg 30% brightness) and one on a higher brightness (eg 50%). Off course it shows the level of brightness in number percentages, not just a sliding bar. Very useful. Instantly switch between desired presets. The only thing missing here is more presets. It would've been better if there were more than 2 presets. But in all in all very good.