I have a lot of Elite99 and their sister brand gel nail products. I initially purchased a few on Ebay to try them out and immediately fell in love. The quality is amazing for a product that is so affordable. It's better than the OPI the salon used on my nails! This one doesn't require a lot of layering. Some require a few thin layers to achieve a consistant color but that's normal. The changing effect is awesome. It changes between hot and cold. I sometimes add a holo glitter to it for a more fun effect. I have a yellow/ redish-orange one that I add gold holo glitter to and it looks firey. With their base and top coat this polish lasts me 2 weeks and I'm rough on my nails.
Love this, it really does work. Changes color with ease when nails are placed in something hot or cold. The color that will primarily show is the middle color (warm). Super inexpensive and great to use. I'd definitely recommend anyone to try! Get them on ebay for just a few cents in auction or no more than $2 if you "Buy it now".