Review (5/5): Great value
As a disclaimer, I am not a huge fan of brands locking you into their ecosystem and taxing you on all accessories worse than feudal lords. That's one of the reason I do not even consider products of a certain fruity brand.
This product, however, is an example of great value in accessories. I feel I am getting more utility than I paid for it. It's easy to use, and my skin feels and looks better when I clean the shaver with this detergent. I highly recommend it.