I needed a new set of strings for my guitar, and since the Ernie Ball Hybrid Slinkies are what I like most, I wanted to try the full stainless steel set.
As soon as I put them on my guitar, I found that they feel a little bit harder to play compared to the standard nichel plated Ernie Ball Hybrid Slinkies, and they gives a "rusty" feeling under my fingertips, with lot more friction... Maybe they would last longer than a standard set and have a really great sound, but I don't think I'd use them again.