Like I say, it’s a boost not a hybrid so 23mpg is pretty good especially for the engine output of a 1/2 ton. 430hp and 570ft lbs torque. There are some nice features outside of gas mileage and power. 7200kw onboard electric generator, can run AC and heat for hours with very limited, minutes, engine idle time. The engine cost $2600 more the standard 3.5L EcoBoost. Not the $10-$12k+ to get into diesel and it gets the same mileage. Not to mention more affordable normal gas engine maintenance costs and fuel costs vs diesel. With Poweboost engine you get a larger gas tank and locking 3.73ls differential. $1k worth of upgrades. So for folks where those things matter and don’t need a diesel that’s why you bother. Unless I was towing large loads regularly I’d have to ask why bother with a diesel? Everyone has their use case.