Is the new Ford 6 speed really that BIG a deal?

The hp rating is not at the same rpm level, from what I've read. I have the new 6 speed and in my 20.5k chassis it works quite well. I can't compare it to the 5 speed. I find the noise level quite quiet at road speeds, and bit loud when it has to pull up a hill. There is a great deal of discussion on the new engine/tranny on the irv2 forum. Depending on what chassis you get some say the automatic downshifting function of the tow/haul feature doesn't work as advertised. It works very well on mine.