One piece rear derailleur hangers are supposed to improve the shifting performance of the bike but do they really work? Also, does the more unique version that silca have to offer also work?

Oversized pulley wheel:    • Are OSPW's Worth It? | + NovaRide OSP...  

Chapters:
00:00 - Intro
00:41 - Selling points
02:54 - Silca Review
06:33 - Does it work?
08:21 - Worth the money?