For me personally they do work, and I would generally say I have them when my symptoms are too much for me to cope with.
My doctor says I will end up with Osteoporosis anyway if I am in a wheel chair so the steriods aren't going to hurt I love my doctor when she gets to the point!
Also I am lucky I have a doctor that will let me have the steroids in the surgery straight into the back of the hand. Slowly that is but at least I don't have to have them by IV over a coupld of hours for 3 days running.
I myself have 1g for 3 consecutive days with no taper but I am sure a lot of others have taper doses.
I stick to my Satin drug now and have opted to have Steroid dose when I have a relapse that knocks me about. Touch wood still going free at 8 mths.