I used to wear metal braces many years ago but i stopped wearing retainers and some of my front teeth shifted. I was looking for aligners and came across Zenyum. Decided to go with it as it was more affordable than other alternative in the market. Love the idea that we dont have to visit the dentist monthly, just need to update progress on the app, which is very convenient. Not only that, their customer service are quick and prompt. Glad to say i am happy with my final results.