Very small and lightweight, with good build quality and truly fast charging. I don't know if it's the fastest charger on the market, but it charges my phone (LG G2) just as quickly, maybe even faster than its own charger (wall plug).
Also, it is very stylish. I paired it with a green flat cable and it looks great! The price is a bit steep, but I believe it's worth it because if you try to save a few euros by choosing something cheaper, you'll have much slower charging.