Lifespan of Sedu flat iron?

I'm seriously thinking about buying a Sedu straightener. But I was wondering how long the flat iron lasts? Like, is it worth spending the money for? Does it last more than a couple of years, because the one I have now, I think I've had it for 2+ years. Because I really think it's a good flat iron, but I hear it breaks down quickly. Please answer quickly!