Good Product.
I purchased this replacement foil/block for my 8985 before I needed it (I like to have a spare of most things, where feasible).  I have had the original for 9 months and though the foil/block is supposed to last for 18 months, I have read where the foil gets holes in it (from wear) anywhere from 6 - 18 months, so I wanted to make sure I had one when necessary.  I have not had any problems with my shaver or the original foil/block yet.  So, I have to say that, so far, so good.  I like the Braun 360 very much (I had been a razor shaver for over 30 years) and am glad I picked this model.  Time will tell how well it holds up, but no problems so far with anything after 9 months!
Rating: 4 stars