Customers have overwhelmingly positive feedback on the Rectangle Glasses from Zenni, praising their stylish designs, comfortable fit, and affordability. Many highlight the compliments they receive when wearing them, as well as their durability and quality over time. Some users experienced minor issues such as frame paint wear or lens popping out but remained satisfied overall, often returning to purchase additional pairs due to their enjoyment of the product. The combination of great style and good value has made them a favorite among customers.