Mouth piece is comfy on the lips, easy to refill and no mess at all thanks to the opening on the top of the tank (Mouthpiece clicks off the top of the tank), coils taste and last a long time if treated well, I'm using a 70/30 juice in the 0.8 Ohm Coils and it works really well & tastes great! Considering the G2 doesn't leave my hand, the battery lasts the entire day! Great little upgrade from the Elf bar as they are similar but the G2 is defiantly better in every way. 5/5