Hi Donnamaryuk, I am guessing your as much of a QVC superfan as i am!! The good thing about QVC is you can try out a brand,backed with the 30days Money back guarantee and then go about finding the products cheaper, like on ebay! I haven't yet tried OPI, but was glad to read other people's opinions on the brand. I have been quite desperate to try ProStrong, as they have a brilliant nail pen with fluoride in it, which is supposed to be fantastic for weak or brittle nails.