The not so good things first. I feel that the instructions are not accurate enough. It is not clear how many times a day you can use the green light on your face compared to the YouTube clips. The switches on the item are tricky. However, it is a cool thing to have and feels nice in your hands. Of course what they don't tell you is that once you have changed your setting to the required light, that you don't need them, as by touching the Talika against your face, it will start to work! Remembering that this is doing something that compares with fillers, skin peel and rosacea cream all rolled into one, although perhaps you might not want to find the time to shine a light on your face every morning, think of the alternatives! As I am fairly light sensitive I have bought some sun-bed goggles which work really well. I recommend that no-one looks directly into the lights, it's not nice! Is it working? To be honest, I am not sure! Hence the 4 stars. The data provided is on a 28 day basis, and I have only had my Talika for 11 days. All I do know is that sometimes my skin looks worse! But then is that because other areas are clearing faster? What I do know, is it's a bit like slimming, it's not what you look like it's the clothes you can fit into. I seem to be wearing less foundation and what I do wear covers the age spots and redness far better. Roll on the 28th day!