I've found the flexability of it to be the major benefit.
No need to draw down the entire credit limit.
Allocated sub accounts for each individual property.
When the time comes, open another sub account, and draw down funds as required.
Of course, you do pay a premium interest rate for the privilege, but the funds are available immediately, whenever you require them.
Not so bad, but if you had property ownership separate, you could:
- Gain asset protection advantages
- choose which of you should incur a capital gain if you had to sell one
- possibly improve land tax
- possibly improve serviceability
- estate planning benefits with wills.