I made an appointment for this at a local salon to hopefully permanently straighten my hair. I know it only last a few months. They change $350 cause my hair is long. Has anyone had this done? Does it ACTUALLY work? My hair is very curly and I have to wear it up and work and it looks terrible if I leave it curly then put it up so I dry and straighten it EVERY SINGLE DAY. It takes about an hour. Anyone know if it really works?