This is one beauty product I don't mind forking out for! One tube lasts me around 6 months too. When I put on the lipgloss, it feels sticky but it tastes really nice! It lasts a very long time and it probably would last longer if I didn't lick it all off! There are so many different shades, but pesonally I like "dragee" the best. It looks white inside the tube but when applied it is almost holographic and reflects the light well without making your lips seem plastic and over the top.
I once even went swimming with it on and when I got out the pool, my lips were still glossy!