People swear by it but I found it to be utterly useless as a starch. It does release wrinkles - BUT so will water. However, I have to confess I keep a bottle around just for the scent - the Linen scent is so good I actually ironed bed sheets for the first time in my life. : )
Stay Flo or homemade is best and both are non-aerosol (mix cornstarch with boiling water and add cheap vodka once cooled to prevent mold. Store in the refrigerator for longer shelf-life).