I am a huge Moleskine fan, wouldn't dream of buying any other diary or note book so felt it appropriate to buy the stick notes. I am also a big fan of post its, sadly the stick notes are not as sticky and the paper is not as flexible. That said they are great in diary's, I bought 2 packets and am happy with them but best used in a book/diary/notebook rather than sticking on a surface. The different sizes are great as are the colours.
I'm a bit of a die-hard Moleskine fan, so I'm probably very biased as I love a lot of what they do. I'm also a stationery geek, so this hits all my buttons. Yes, it's true to say that I love it. Nuff said.