I'll be happy with 35 mpg highway. I only got 25-26 mpg with my 3.0l. I live in the country and most of my driving is on county roads and highways.
WRT options, I got air and cloth seats - that's it.
After a few days of driving it, I've noticed that it revs higher than my 3.0l. It is slower from 2nd to 3rd gear and the signal switch is real high on the column. I'm not used to it being so high. The seats are harder but that could be that they haven't been broken in. It's quieter than my old truck.
It has less gauges. My 2000 Ranger had oil, battery and temperature gauges. The 2008 only has a temp gauge. The "Oh Sh!t!" handles in the cab are a nice touch. I need to get mats for the floor.
I got the basic AM/FM radio. It's butt ugly and I can get a better AM/FM with CD after market - without the Satellite. Future Shop or Best Buy have good radios for $100 to $150.