The Spigen quality is always present. Alcohol rag is always good because its rapid evaporation does not require additional wiping the screen with an old cloth fabric. It is true that the glass cover does not cover the entire screen, but this is due to the fact that the iPhone 6 is curved at the edges. The version Glas.tR 2015 should provide a wider glass with edges also curved to fit perfectly. Technically developed with a "flexible" glass, this version would be a more cost High. Unless the choice ultimately rest on the same type of glass "rigid" but whose installation will be more difficult because to be almost perfect to properly fit the shape of the iPhone 6. Continued ...