I would like to get one. It looks like to me that it is more sturdier than the OEM or AutoZone one. I have had my truck around 13 years or so and it has allways been my daily driver. I have had to replace my carrier bearing/ center support bearing 2 times. I also had a new driveshaft built and balanced by Inland Empires. I have put on close to 14,000 miles on my truck between Febuary of last year and Febuary of this year, so yeah, I have put on some miles on my center support bearing. I usually average 8,000 to 10,000 miles a year.
The problems I have encountered with the OEM or AutoZone one is the rubber part dry rots out/ tears out. I have also had the stamped metal part come unstamped. I just drilled a few holes and bolted it back together to buy me some more time 'till replacement time.
So in my opinion the billet one should hold up a lot better.
Keith