Advantages of a full length guide rod.
The pistol runs smoother and the slide to frame fit stays snug longer because the slide is guided straighter back and forward on the guide rod, rather than depending so much on the frame rails for guidance.
Adds a touch of muzzle weight. Which helps dampen the natural ‘wobble zone’.
Pistol is actually easier to field strip if it has a tight bushing to slide fit. Stripping is done similar to the Beretta 92FS as well as others like it. The spring stays captured in the upper assembly when removed.
Bottom line, it’s six of one, half dozen of the other. Which ever you prefer, do it.