https://www.marketwatch.com/story/mortgage-rates-almost-drop-to-another-record-low-heres-why-a-housing-market-slowdown-wont-necessarily-push-them-lower-2020-04-16
We're refinancing from a 4.5%, 30-year mortgage down to a 3.125%, 15-year mortgage. Our monthly mortgage payment will go up by a couple hundred dollars, but we'll be paying the loan off much quicker and saving a ton on interest in the long run.
If we'd stayed with a 30-year mortgage, then we would have been saving a few hundred per month.