Quickbooks online offers a free version that is limited to one connected bank account.  Same online version with limits.  It works on any device.  Click here to see the offer.

That might be a way to test it for yourself without all the headaches of matching old software to the proper operating system.  I have been using QB online Plus for several years, then downgraded to Simple Start last year and still love it.  

There is a learning curve if you are familiar with the desktop versions.  I like that it can be used with any computer or phone regardless of operating system or brand.  Login with your Microsoft, Apple, or Android.  Backups and updates are a forgotten thing of the past.  It's always backed up to the last keystroke and on the latest version to the minute.