I've avoided any sticky note brands that aren't the official Post-Its because anytime I've gotten them I've been very disappointed and so annoyed I stop using them. They just don't stay stuck on anything and the tend to curl up. But I thought I'd give this brand a shot because I go thru notes like crazy for various purposes in my work. I have to say I'm amazed and pleased. So far they've been staying stuck just fine even for days. I don't know if they would for weeks but these suit my purposes just fine...and for a better price! I just hope they'll come in other colors. I need assorted bright colors but even some other pastel options in big packs would be much appreciated.