I own a SB Delica and I'm super happy I do , but mainly for the reason of steel diversity , not because the steel is anything amazing .
It does take a scary sharp edge , but how sharp do you actually need on a EDC knife , my Hap40 , ZDP189 and VG10 Delicas all shave hair easily .
I have an old Carbon Steel Tradional slipjoint that sharpens up and performs in a similar way to Superblue and it was made in the 1920's so its not like SB has delivered truly ground breaking performance .
I live in a tropical enviroment and of all my Spydercos my SB is the first to show rust/corrosion if I dont clean and protect it regularly.
So my conclusion is that I really like it , but a lot of that love comes from it being different , not because of any great attributes or performance .
If you look closely at this pic you will see how rust is developing inside the Spydie hole , this developed over a 24 hour period after opening the knife with sweaty hands in a summertime tropical enviroment , none of my other Spydercos have ever done this , even my ones made from M4 which is supposed to be rust prone .