I'm pretty late to this convo, but I laugh every time I see "Powered by Lamborghini". You guys keep getting suckered into thinking the Fortador is made by Lamborghini. It has nothing to do with the car company (which is owned by Audi, I believe). It's made in Poland and they use a burner made by a different Italian Lamborghini. I've seen both steamers and was almost suckered into a Fortador, but I ended up going with the Optima XD and it blows Fortador out of the water, hands down. The Fortador is HUGE and seems to have all the gadgets, but couldn't put out the same amount of steam as the Optima, period.
I get defensive because I love my Optima and keep seeing people talk about the Fortador likes it a better steamer, when it's clearly not what they want you to think it is. Anyway, I'll put my Optima up against anyone's Fortador any time of the day.