Yes, sorry I meant AMS. Even though I don't have an implant, I belong to the Implant Group on Yahoo besides the Peyronies Disease Forum. I'm strongly considering one after my 12 months of PD has elapsed in June, 2010.
On one of those sites, the advantages/disadvantages of both the AMS and Colorplast implants were discussed. Some medical researcher did a follow-up study of patients to find out how long each one lasted before it had to be replaced. The study reported that a useful life of 8 to 12 years was the norm. That time range was pretty much confirmed by the implant patients on the yahoo group. One guy has had six implants, both brands and issues with both the surgery and equipment.
Anyone interested in an implant should join the yahoo.group. Btw, it has alot of pretty graphic pictures and videos