I researched how to protect my S4 while maintaining its finesse size. After testing various shells called "slim", I was quite disappointed with various annoyances (s-view very ergonomic / shell too intrusive) and I finally decided that protects screen would be more functional for daily use. However, protects flexible plastic screens did not suit me because protection was almost zero and lively fingerprints. Finally, so I started looking for products like "glass" but the price is a bit high (20 euros on average).
Then I came across this marvel and frankly, no complaints. It keeps its promises, the screen appears protected from. In short, a very good product.
