Pretty much the same as everyone here - it is the epitome of so shit it is good. How in the hell all those characters have randomly (well, not randomly) come together is, well, it is so Prison Break it is unreal.
The program has and always will be based on pure chance and coincidence...
They have always tried to subvert the audience's expectations and they hold this basic tenement to the point where they almost treat the audience as fools.
T-Bag's magic hand is a perfect example of this and it can only be a small joke on the part of the producers designed to uphold the programs' total dive into the abyss of absurdity. The program was a hit in its first series owing to the ability to keep you guessing - even up to the point where you question your own recall. This is where the program lives and it will always be remembered as the tough shit stain that would never flush out of the bowl.
Anyhow - the phenomenon is real... you can't stop watching it because you want to see what shit they'll come up with next. And furthermore, the characters that you have come to know are continually shifting and changing their allegiances from one minute to the next.
Anyhow, I love it - it is so fucking shit that it is good. It is like the person who runs into the room screaming that the building is on fire and needs to collect 10p to use the phone, so everyone gives him 10p.