According to the Wings Alliance, they have a 100% success record. So if you can pass the assessment, I think you'll be in with a good chance. However, I think the quality of their course is more to do with the success of their students than the airline connections they have.
However, you should send them an email, as I'm not sure if you can do the APC unless you have completed some of your training at a WA school such as BGS, or Bartolini for example.