Just got the Honda accessories half windshield installed a couple days ago, notes:
Installation instructions say to use a template (included with instructions) to mark holes to be drilled in center console. If I had done that I would be drilling a second set of holes and looking for grommets to plug the first set. My way - Put masting tape down on center console (easier to see marks for holes) - Fully install windshield - Ride a bit to verify that windshield will not want to shift - cut an old fashioned lead pencil down to about 1.5" - mark holes using bracket with windshield in place - Remove windshield - Drill - Re-install. I actually do not know if it is worth drilling the holes as windshield seemed fine on test rides without them.
Windshield clamps were too rigid for me to install without tools (per the instructions), wrapped tape around a large blade screwdriver to prevent scratching and used that to make the job easy.
Function. Will be fine with a helmet or goggles and it will keep hands and upper body warmer. At 6'1" air hits me from the neck up and air flow seems greater than with windshield removed, which probably makes sense as there is likely about the same volume of wind flowing through a smaller area. Will serve my purposes as I wear a helmet when it is cold outside. Very easy to take off and put back on, will not use it during warm weather. Took passenger seat off and layed in a large dog pillow for 4 legged co-pilot, he seems to approve greatly.
Value - Overpriced at + - $300 . Probably should have bought something aftermarket for closer to $130 but do not have one of those to compare with so I am not sure.