What loan rate should I go with?

[Kaila Colvin]

Hi all, I am definitely a newbie and have a lot to learn about real estate investing. My husband and I are in the process of purchasing a property that we will turn into a short term rental. Our credit union first gave us a loan option for 5.6% by putting down 15% and doing 15 years. The loan amount is under $50,000. Just received and email from them today that there is a new option that came out this week. Where the interest rate would be 3.26% for a 12 year loan but we would need to do 20% down. Is the extra 5% down worth the lower interest rate for and the 3 year difference? Any info will be helpful and greatly appreciated. Thanks in advance!