VERY POOR PRODUCT MADE WITHOUT CARE I have had the worst experience of any product with this company. Although their customer services are in the main very nice and full of promises, their laboratory technicians are well below par. This means that the product is dreadful. I did have one appalling experience with one of their customer service reps who couldn't have cared less and clearly hated their product.  I ordered my Instasmile in the Summer on 2018 and at one week away from Christmas and after 3 attempts, I am yet to receive a product that I can wear. My original request for them not to be dead straight was ignored, meaning the 1st set of teeth were so big and bulky that I couldn't close my mouth and looked like a parrot fish. Then delays set in and I considered throwing in the towel and having a refund, but still hopeful of a dazzling white smile I changed my mind and decided to give them another try at getting it right. The 2nd set were pretty and thin, looked like my own teeth but beautifully white, however, due to a lack of care and attention, the finish is rough and one side of the uppers do not meet my gumline and expose my own teeth underneath (which the 1st set do not, so it's not my impressions that are at fault) - obviously defeating the object of them. So I was then promised the perfect set that would be designed exactly as the 2nd set but finished perfectly. What I received was utterly horrendous. They were a different design, thick and bulky with loads of curled extra material on every tooth at the gumline and are extremely ugly. The bottom set are also loose which seems bizarre as my impressions can't have changed! I am beyond disgusted, particularly as their customer services now appear to be avoiding me. They send me emails asking if I am available speak and then don't call me. I am in the process of making a very clear video that I will post to YouTube and Vimeo so that potential customers can see the real product they are likely to receive rather than the endorsed positive videos that people make so that they get free or cheaper products. Ultimately it is a clever idea, but my experience with them has been horrific beyond belief. I really wanted lovely white teeth and thought that Instasmile would be the perfect answer, as due to having sensitive teeth, I am unable to undergo tooth whitening. The reality of their product does not match their promises so beware when considering Instasmile.