Youth Mobility Visa - any reasons for it to be denied?

My Australian fiancee is applying for the youth mobility visa this week

I am in the UK and she will be staying with me and looking for work when she gets here

Our plan is to spend a year here and I will apply for the prospective spouse visa for Australia and we will both return there to get married

Are there any reasons that this visa could be denied?

NO, because i is awesome ^_^

Technically it shouldn’t be a problem but have heard that border agency can be suspicious of people coming in on temporary visas when they have links to the UK.... see this thread on a similar topic:
[url]http://www.immigrationboards.com/viewto ... th+fiancee