Hey there,
I have a 2007 Limited Turbo with the leather/suade seats and I found them to be great for the 100 mile trip we took in December. I have a blown disc in my back but the adjustable lumber support and power seat and tilt wheel means I was really comfortable. I test drove 8 PTs from 2003-8 before I found mine with 51K miles (Tangering Pearl with sunroof) and I thought the 06+ had more comfortable seats because of the full power adjust, not just the up and down sillyness of the older ones. I like the older arm rests better however, but liked U-Connect and the Boston stereo and the Gauges of the newer model. Just my .02