They're not too bad, just gotta use elbow grease. Make sure graphics aren't stretched so they're uneven, make sure you use the proper length staples, and they seat all te way. Air staplers make it easier, as well as those reverse handle Craftsman type staplers. I usually tack a few key points, on each side, and then work to the ends, a couple staples on each side at a time. Don't be afraid to pull some staples out, if a section isn't coming out so well, and re-do.