While the article talks about a commercial system for large laundry operations, it points out that ozone kills bacteria far more quickly than bleach; that laundry comes out fresh; and that there are real cost savings along with a reduction in chemical usage.
The latter is something we personally love about our home ozone laundry system. We love that it will pay for itself in a year or two through cost savings, but we love even more that we're not wearing clothes and sleeping on sheets with residual laundry detergent every day. We're so swamped with chemicals in our world already, no wonder so many people struggle with allergies and skin problems.
Besides, not having to figure out whether to run hot or warm or cold laundry loads (you never pay to heat your water with ozone) and never figuring out how much detergent to add ... these just make it easy to do laundry. And each to his own, but we prefer not having to put much energy into something like laundry!