I have only ever used the light shade, which can be built up with layering and extra development time. I like to get up early and leave my tan on all day (for 8-12 hours), then wash it off before bed.
It lasts and fades well, and has a nice cocnutty scent, which isnt too obvious if you pan on wearing it to work.
Over all I think this takes the cake, even beating my past love of the Kate Somerville Taning Towlettes.
Have you tried this tan? Let me know in the comments below if you have, or any othere recommendations you may have :)