This guy does a great breakdown of STRC and why those who may hold a little fiat may be interested in holding this product.
This guy makes it clear that nothing is better than holding Bitcoin outright but for those who need income to pay fiat bills this is something they can consider!
10% APR is an amazing return. Once this product gets rated and establishes it can keep its peg expect this to be a major player in fixed income. Until we reach a true bitcoin standard