I'll be honest, when I first tried it I wasn't completely convinced; the mousse spurts out a bit which splatters where you don't want it, it expands like hair mousse which means you use more than you want to, and the mitt is scratchy so I'd use a different one if I were you, BUT, don't let that put you off, the results are amazing.
It's called the One Hour Tan because that's all it takes for a natural, light colour, although for those after a darker tan, it does carry on developing for three hours. Due to my pale skin tone and only having an hour to spare, I left it to develop for the shortest time, as you never know how dark they'll go, and I was left with a gorgeous hint of a tan, just enough to take the 'edge' off my skin colour, and probably perfect for those with very very pale skin tones, but it didn't really look like a tan (which isn't a bad thing for me!), so I think I'll leave it on for longer next time.
It left my skin feeling really soft after washing it off, and I was left with a smooth, streak-free golden tan, I'll just use a different mitt next time! And at £7.99 it blows some of the more expensive brands out of the water.