It seems like most that try GEM end up liking them best. Something about it's specific thickness just works! Amazing how they got lost along the way. I guess the 2 sided DE along with Gillette's marketing destroyed anything else that was out there. And funny that in the end, Gillette carts ended up being single edge blades.I find the standard Personna coared GEM blade superbly comfortable and it may be the best blade I’ve used in any format - for me, anyway. I don’t feel it is any disadvantage for GEM razors if there are few other options and I doubt I will ever try any other GEM blade.
Ever since I first tried the GEM, it ended up being the best for my face and injector's a close #2.