I've been using Keramiks for the last couple of weeks.
I find them excellent.I find them very comfortable in my '60 Super Speed.
The blades come in a plastic box with used blade storage underneath.The blades are single wrapped with 4 huge blobs of glue..the only negative I found with them.Enough glue to stick the blade to the razor,use glue side down in a TTO
Of the blades I have tried they are by far the longest lasting,I have got 7 good shaves from them,no other blade has come near that for me.
They are currently $19/100 shipped from B&B member Melyus but there are rumours of scarcity/discontinuation about.