The labels work well and the price is quite affordable. However I was a bit disappointed with the color. While Avery labels are white the Staples labels are a grey almost newsprint color. If you're putting them on a while envelope the labels will definitely stick out. The paper is also a hair thinner but enough that I had trouble getting them on an envelope well (some didn't lay flat and I ended up with more creases than I do with Avery. So these are great for the budget conscious but if you want something that looks good I suggest avery.
Once you set the information for the printer as to the size of these it is a breeze to print labels. Best of all they do not stick together so I was able to print multiple sheets (10+) of the same label without any jamming.