Please excuse me for interrupting but the following are not true:
"1) It increases useable HP to the wheels by freeing up robbed HP needed to turn the conventional fan.
2) It improves gas mileage via allowing the motor to not have to turn the fan"
The fan uses no more than 1-3 hp at full load which happens no more than 10% of the time given you have a normally functioning clutch.

"3) it allows for quicker warm ups to operating temperature" - This is not true also because untill warm up the engine uses the small water cirquit and the radiator is not involved given you have a normally operating thermostat.