Structuring.
I’ve used them several times, mostly because they are relatively cheap forms of credit for short durations (<12 months). I have plenty of credit available via traditional credit cards, but BNPL —- to this point —- haven’t reported usage rates to the bureaus.
Last summer our A/C went out. It ended up being about $4.5k to replace, and it was a heat emergency at the time. So I put the whole thing on Affirm for three months, at 0% interest. I paid about $50 in fees. That got us through the immediate emergency and gave me time to shop around for a better way to fund it.
I ended up taking out an auto loan with my credit union. The rates were much cheaper than a personal/unsecured loan, and I have three vehicles in the driveway without liens. The loan was for four years, but I’ve already paid it off.
In a tighter situation, BNPL not impacting your credit utilization rates is a big benefit.