Hi there, I used to use this forum but forgot my password... So I've re-registered with a different user name.
The theme of the thread has changed a bit and the tone does appear negative because the posters are trying to help by telling you of the bad experiences they've heard/seen.
So, to add some balance, we came in 2011 on a 457. I have a stepson who came with us aged 15, he's just about to turn 20 and has had a great experience. In 2013 we achieved PR through employer sponsorship. We no longer work with that company, we have 3 houses here and I am just waiting for my citizenship ceremony! It was an extremely stressful time with some very low lows, but we got there, so it can be done. It is a risk, but how would you feel if you didn't take that chance in a couple of years... Always regret what you do, not what you don't do.