Thanks BellaBoo for that information. I knew I couldn't turn my steam on until the iron heated up but I didn't think about that when it shut itself off and I shook it to wake it up. I haven't had a problem with it sputtering, etc. though. I have a Shark which came with my vacuum cleaner and I have enjoyed it. Unfortunately, I bumped it off of my ironing board and it doesn't seem to heat up as well. I did order an Oliso online from Joann's yesterday.