The delivery service is excellent, cannot fault it. The product is competitively priced but does not always function correctly. My sister, who also uses vype products, has also mentioned this to me. I have noticed that the clearomizer does tend to burn out quite quickly and the vaporiser itself sometimes leaks and hot e-juice does sometimes go into my mouth while I am using it which is not pleasant. However, I like how the product looks and the amount of vapour it delivers.