First off, this WILL fit both 5th and 6th generation iPod Touch. Most screen protectors I've seen for various electronics I've had over the years utilize a flimsy though often totally effective piece of plastic. This screen protector feels like it would be 4x thicker, and the embedded glass construction of it makes it appear sturdier and potentially more effective.
Like all screen protectors ever, getting this thing on is a absolute pain. I'm not going to remove a star for this fact, because I feel this is just par for the course when it comes to this type of screen protection. Even if one follows the instructions to the letter, there is potential for debris to get under the protector during application. Some past screen protectors I've used included a spray that can be applied to both the protector itself and the device it is to be applied on to. No such spray is included with this package. Given the $39.99 price at the time of purchase, I was surprised this was not included. Once properly applied it appears likely to provided better than average protection.