More fragile than the original

After just over a year after the purchase of my Braun Series 7, I felt the need to change the cassette so I ordered this product, actually the first months was satisfactory. But after 6 months, during unclipping of a standard, all elements are detached from each other. Unable to rise, a plastic tab 5 mm acting as a spring had broken. Good to throw in the garbage and order a new cassette so.

Among the tapes, and cleaning product to replace monthly (excluding investment razor start 200)) wonder after how many years, compared with a razor art found there? ... A quick calculation and say over 10 years! If the shaver keeps all this time, which is unlikely. Not to mention that I have never been so close shave with an electric razor than with any straight razor. Cut the risk less, it is true :-)