Thank you for the opportunity to help you with your question!
Yes i have used a non conventional form of money. I used it because it is backed by the government and it offers more flexible products for different types of buyers. It is also good because one can decide to go for VA loans which does not necessarily require a person to have money down when when purchasing a house. It laso offers a wide variety of products to suit your needs.
Please let me know if you need any clarification. I'm always happy to answer your questions.