I have the Shark Pro - it's 1800 watt and heavy and so far lasted 3 years and counting. I have a Sunbeam iron that is only 1400 watt and just didn't seem to get hot enough. I have kept it as a back up.
We go to a place in Vegas and they have an iron and it's a very cheap Black andd Decker - that one gets so hot I love it! If I have to replace the ones I have Black and Decker will me my next. With my luck the poor cheap iron has been dropped once too often and the thermostat doesn't work and that's why. But when we go there I never take my travel iron any more because their little ones work great;