This is legitimate and as I said, every consumer can decide for himself whether he likes this convenience, or not.
I even clean the shaver coarse (open, shake out, rinse with water) before and then put it into the station. This has the advantage that I can use a clean razor, must make me worry about such as lubrication of the shaving heads, or calcium deposits by cleaning it under the tap without me.
The scent of the previous solution (Jet Clean) was much more pleasant to me, the current product comes to my mind rather the cleaner of Biopretta close (). All in all I am satisfied with the cleaning and care effect of cartridges and quite willing to pay for the course called (the razor itself is upscale enough that you have to get excited about this "silly" follow-up costs).
What I find strange is the price of the respective containers.
I thought but to get the best price / performance ratio when buying a 4'er packs.
Current costs the 3'er Pack 16,98.- (ie around 5,66.- per piece) and the 4'er Pack 25,28.- (ie 6,32.- per unit). Who can expect, will come itself quickly on the best P / L ratio ;-)