Has anyone had experience with the idea of shared home ownership?

Here's a link that explains the basic principle:
Shared Home Ownership - Peoplebrokers (http://www.peoplebrokers.com.au/Shared_Home_Ownership)

It sounds like an attractive option for me, but pros and cons anyone?

Very poor idea from my opinion. One just has to read some of the posts here in real estate that shows the headaches when one side does not pay as planned ( the other still has to pay all the costs) the issues when one side wants to move or sell)

The issues causes a nightmare of problems,