Aurt is an AUR helper / wrapper script around aurutils. As the author, of course it's the best AUR helper for my usage patterns. I have continued development on Aurt for my personal use, and will provides updates to github as requested.
One of many convenient features is an option to seamlessly add (copy paste) a pgp key if needed for a build.
Pro I wrote it!
It's currently the best of the "easy to use" AUR helpers.
Tested, developed over months with over 100 AUR packages of all variants.
Running aurt [no operation] in terminal provides menu of operations to remind you.
An aurt --help operation provides more details and examples using simple terminology.