I've finished my aligners journey and moving on to the retainers. The overall result was great and good customer service! It does straighthen my teeth, recommend for those who need minor adjustment on their teeth. The aligners are very invisible, then what I expected. I like how they have an app to keep track of our progress. 4 stars as I would appreciate it if they mentioned more details about the retainers at the beginning. But overall, it was a great experience with Zenyum!