Great coverage!! The amount needed is very small, I typically did spray forehead, two cheeks and chin and really small spray and it will go over the whole face with very good coveragE. I love this products! The only thing is it doesn't contain much in a can, you do use it up pretty quickly...
I was hesitant to buy this because the color seemed way too light for my caramel skin tone, but the 501 is the perfect shade! After the first can I used, I even tried a different brand, and when someone took a picture of me, I looked like I was wearing goggles 2 shades too light. That was enough proof for me to go back to the Dior Airflash! It's light enough not to be cakey, but it has great coverage! I didn't think it would last long, but it actually last about 2-3 months, depending on how much you use! I am a Diorskin believer now, and I'll never go back to my old brand!