SammK
You didn't start this thread, the one you started was merged into this one.
Yes, there is plenty of bitching about cadetships generally because of why they have been introduced and not due to any animosity to the cadets themselves, with the odd exception. You need to understand this cadetship programme was introduced for one reason and one reason only, to reduce pilots wages.
However there is some good information in this thread if you bother to look.
The questions you pose in your last post are probably best answered by the training providers. If you're not comfortable with their replies then there in lies the answers to whether or or not to do a cadetship.
Which ever way you go, self improver/GA/airline, or cadet it will be crap shoot as to which is the best way to go. Ask the recently graduated Jeststar cadets who have been told, "No job" what they think. Right now the self improver/GA/airline option is probably the best. In a few years time the cadetship might be better.
However never lose sight of the reason why Jetstar introduced this cadetship.