Chezdubai - of course you are entitled to your decision, but the negative comments on this forum are posted by a minority. Bare in mind that SJ has grown in numbers and despite the two people who post to the contrary, the majority of crew are extremely happy.
I too used to work for Emirates and can say with all honesty that the move for myself was a good one. Feel free to PM me if you have any concerns or anything you would like clarifying.
With regards to the waiting time on interviews, SJ are no different to any other carrier, BA, Emirates etc, you cannot take this as an indication of what a company are like to work for.
Safe flying to all.
