Reread what they are saying as the CV angles will change just like they will with the Daystar lift. The only thing they are saying is that the CV joint angles will not get too extreme to cause problems.

You will still need an alignment with this kit.

Using longer coils is better than spacers like the Daystar lift but the installation will be more of a hassle since you need spring compressors to do it.

The fact you need to dig up longer lines for the brakes and ABS adds a certain hassle factor also.

The coils should handle more weight as is mentioned for a front winch and bumper so this also would be a plus for the longer coil lift if you are going that way.