"All of my questions were answered promptly and completely before and after my order. The aligners are completely clear and do not suffer from excess material to irritate your gums, like many other liners do. These are not your average 3D printer trays! The quality is the best that I have seen in the industry, rivaling the best that I have seen from the largest companies and even the boutique vendors. Far too many companies are selling a plan that moves your teeth far too quickly. Smilelove offered the most conservative treatment plan, and I am very happy that they did! I am an EXTREMELY satisfied Smilelove customer!"