The dark lenses are amazing for blocking out UV rays and they are super adorable to boot (from the front atleast) now for the "not perfect" part.....the band does have a GIANT "babybanz" logo on the back that, as previously stated and I find to be the most accurate description, turns your child into a walking billboard. I seriously doubt that anyone in the Raybanz family is that hard up for cash that they needed to turn innocent children into advertisements. The other issue I have is that the band velcros right behind the ear, making it a bulk behind the childs ear and causing it to push the ear forward. For a 3 month old+ baby who is developing, this can cause an issue, I had to over compensate to keep her ear from being permanently pushed out by keeping headbands on her 24/7 that I could place on her ear to push it back into position. I'm not 100% sure that these are the only reason for it, but it was only on the one side. Now, having said that, living in the south, and the intense sun gets REALLY bad and all the window tinting, and stick up additional covers etc. just aren't enough when you want to protect your little one's eyes from the sun. My daughter really does seem ok with them, and we've had them for about 2 months now and she doesnt fuss when we put them on. Oh, and they will leave a little indention on the nose, but it goes away, and really, what pair of affordable sunglasses DON'T leave a mark on the nose? Overall, I recommen these for the necessity of it, but I hope that the company reads these reviews and revamps their product. The potential is there....but so is room for improvement :)