I have two irons that I use; both of them between 15 and 25 to 30 each. The one that I have had the longest I use by the sewing machine and I like it because when I'm doing alot of piecing it doesn't shut itself off. I keep that one plugged into my serge protector and I switch it off when I'm done sewing so I don't have to worry about any fires. The other one has auto off and I use it on my cutting table. I have a piece of thin backer board covered with batting and cheap muslin (use to be a small design wall before I made a big one) and I put it on when I'm doing big pieces. I know it'll shut it self off so I don't have to worry about it. I've often wondered how those irons that automatically lift themselves up when you sit them down perform and the price but until I feel I can afford to look my cheap irons work well and one is really old.