I like that V Lens is very easy to use, even for someone who does not have any experience with this product or similar products in general! The ability of creating custom lens profiles makes it easier than ever before when trying something new out (a different color). It can also be used as an eye-care solution too which helps those people struggling from dry eyes/eye irritation issues because they need more moisture but do want their makeup go unnoticed during work hours etc.. Nothing at all really!! There are only minor improvements needed here & there so far - maybe some additional tutorials could help users understand how everything works better? A lot less time spent searching around looking up answers online now :) Very happy customer after using 2 months since purchasing my first one + many others we sell them via our website / social media pages already :D.