I guess we'll have to buckle up and see if OP's mileage improves, or whether it becomes a deal breaker for him.
Whether the attainable mpg in the future is suitable for him is subjective, and had I not come from driving a 4wd piggy on wheels with our Land Cruiser being a step up in terms of economy for me, I'd still be somewhat impressed given the size/weight of the Land Cruiser, the power it delivers and doing that with all wheels being driven full time. Some of the alternative SUVs have all wheel drive systems that default to front wheel drive the majority of the time (when no slip is detected), which helps vehicles like those deliver better mileage numbers.