Sorry to rain on your bashing parade guys but I have successfully used it the last 3 times after the JB to restore my iPhone 4s settings and apps. Just this morning I upgraded from.4.2 to 4.3.1 and after it was done and all of my apps were restored along with the correct springboard layout of my icons... well I had a huge grin on my face. Well done Jibril Gueye.
Before I upgrade, I open Cydia and write down, by hand, all the packages I have installed.
I don't write them down, I take a screen shot of everything in cydia. Sources/repo's, apps... That way i'm golden.. I have never tried either backup apps as I have always heard horror stories...
If it doesn't work for you you're doing it wrong.