I use about 200 labels a month and I find that these labels are the most economical to use since they are very sturdy and I don't loose any on a job. I find that Avery labels are the best on the market.
Pros: Efficient, Reliable, Quality Construction, Best All Around, Easy to use, Easy To Set Up
The labels are quite nice, also able to have for a few years with out loosing the sticky part off the back. the only down fall is i waisted 2 sheets getting the labels centered in my printer.