To prove why this plugin is better, you have to look at the alternatives:

The native Follow Me tool treats extrusion like a train moving along tracks. PB2’s allows you to place profiles at intervals. Need corbels every 24 inches on a beam? You don't extrude; you array. Need a picket fence that curves around a hill? Array a vertical profile along a 3D spline. Native SketchUp cannot do this without severe lag.

If you’ve ever tried to make a pipe go through a wall at an angle, you know it’s a chore. Smart Trimming