I've got about 100 miles on my 2.7L Bronco and I'm happy to report that I really like this engine! It's by no means underpowered and it feels pretty quick. My Bronco also has the Sasquatch package and it's spinning the 35-inch tires like they are 32s. Now that I've had some time with this engine I wouldn't be surprised if we don't see a big power bump for this first couple of years.
It was posted in another thread, I think on tires, how fast do you want to go in a too heavy brick shaped vehicle before it is totally unsafe? Torque off the line, merging into traffic yes but going over 100 nfw