[Koha] Retirement Village Library

Hi everyone. I have been a librarian most of my life, and am still working in a casual on-call capacity. I have recently taken over the management of this small library and am running it with a team of helpers. There is a catalogue system of sorts on Excel sheets but it is far from user friendly. I am wondering if Koha would be a good option. This would just be a catalogue; the borrowing is strictly based on honesty with people writing their issues on a card, and crossing off when they return. Any advice appreciated. Thanks, Eleanor