I have a Panasonic cordless iron and I LOVE it. The iron heats up in the cradle and then as long as you put it back into the cradle instead of just setting it on the ironing board it stays nice and hot. Plus, while it does have auto-shut off, it detects that it's being used each time you lift it out of the cradle, so I've never had it shut off on me while I was using it. Love not having a cord all in my way. And the water tank detaches from the iron so you can leave the iron in the cradle (heating up) while you fill the tank at a more convenient angle.
It also has a heat-proof lid that clamps onto the base, and the cord retracts into the base as well. So if you take it to a class or if you don't have dedicated ironing space you can bundle it up while it's still hot and nothing bad will happen.
Has really good steam, too, although it does hiss and spit when I put it in the cradle sometimes and I wish it didn't. That's pretty much my only complaint with it, though. I've had it about a year and a half now.