I have one of the old style ones ( it doesn't have changing heads) and it is GREAT for paper piecing. That said, I tried using it when I was making string blocks and found that it wouldn't press the seam open enough and I had "wrinkles" that I had to use that dreaded seam ripper and re-do. Maybe I just wasn't paying attention but I feel my Rowenta iron is better for pressing seams open when making blocks.