I have the 3m and like them. I haven't tried anything else. My only complaint is about 3/4 the way through the cup it starts to starve itself and the pattern is affected. I flip it upside down and pull the trigger to let air into the bag and away I go. This is a problem with full cups, if you just mix half it doesn't seem to do it. I've been told you can spray upside down with them but I don't know the trick. They said if the air is out then it will siphon. Which contradicts my experience with air starvation. I guess they kinda suck but I'm all setup for them and I'll throw a cup away before I clean another one.