We have a CXL loaded including the trailer package and 3.5 V-6. We traded our 2003 Escalade to take advantage of the advertised highway 28 mpg. The 17 in town and 21 on the road is a dissapointment. The comfort is good
Flexibility. When using with the trailer the performance is still good.
Gas mileage. The rear mid cabin captain seats are comfortable but should be set up to slide back further to provide more leg room. An additional center seat belt should be provided for the rear bench seat to allow seven occupants (especially with smaller children)