I recently purchased the naked palette 3 by Urban Decay so I received the 4 testers.
I really like using these eye primers as they were soft and spread out easy across my eyelids. I applied eyeshadow as normal and it made the eyeshadow colour pay off even stronger thn without.
I would purchase a full size of the original and sin as they were my favourite. It made my eyeshadow last many hours and only came of when I washed it off.
It is a higher end purchase but it is totally worth it as it lasts a long time for the price. Two thumbs up for this primer.
I have semi-hooded eyelids, which means that before I discovered this primer my eyeshadow tended to rub off very quickly so I rarely bothered using it. I got a sample of it and it quickly became a permanent addition to my make up routine. I only need to apply a small amount and it makes a massive difference. My eye make up will still look perfect after 12-15 hours, which is great for a busy woman like me. I have only tried the original formula, but the tinted shades look like they could be an interesting multi-tasking product.
Tips: Put a small dot of it on your finger and apply to the lids. Don't use too much as it may get too greasy and do the opposite of what you're intending to achieve.