I use these daily in my classroom. They are very useful for what I use them for. I don't peel and re-stick very often so I can't tell whether it would do well for that kind of use. They do a good job sticking and staying the first time. The price and quantity were what I was looking for.
I live my life in sticky notes...this size sticky note is just right for short temporary notes to stick on the mirror on my drinking glass and in my quilt magazines to mark patterns to make or study etc. etc. I need reminders for myself and also for my husband. I also use them on my calendar for Dr. appointments etc. I use them in my notebooks where I keep our health records notes etc. I like the Staples brand better than Post-It notes brand as they are not quite as sticky and therefore don't "mess up" my magazine pages. I would highly recommend these sticky notes.