I have both.I would have bought more but I'm not sure if I'll switch to the AC format or not yet. 50 blades should be enough until I decide.
There is no difference, that is they both deliver.
They are obviously are different tools and everyone of requires a different technique.
But the quality of the shave and the Perssona GEMS are as good as the Feather AC Club.
If you already have one you don’t need the other.
But if you are like me you not only need them both but you also need many other razors too.
I don’t need both to shave better. That I can do with a DE razor also and I have some of those too.
I just wanted to try how is it and at this moment my preferred razor is The GEM MMOC with the Perssona blade.