Actually the dual pro is suppose to be the exact same thickness (according to the specs on incipio's website) and the buttons are a ton easier to press in my opinion.
One piece of warning regarding this case, the microusb charging cable doesn't work because the backshell on the microusb side of the cable that plugs into the phones charging port is to thick with the HTC provided cable. I had to use my wife's cable from her Samsung SG3 that has a thinner profile backshell.
Sent from my Droid DNA
I have both the Faxion, and the Dual Pro. The Faxion is thinner, but the buttons are much harder to press than on the Dual Pro. MUCH HARDER. Both of them are well made cases and provide protection while looking nice. I will try to put up a more detailed review with pics later. In the meantime, if you have questions...just ask.
Mind making a little review of the case for us? or just give us some insight about the case since you physically have it? Way better than looking at pictures.