It seems like more than 800 users are able to work with the script and understand how it should be used. You being one individual that does not understand the GUI does not mean that the GUI in itself is "stupid af". You could've asked somebody, including me, for some help instead of throwing those words around.
That being said, nowhere does it state on the script thread that it supports staminas, banking in between runs etc. You could've asked for a trial to see if the script met your likings before purchasing. Feel free to contact Maldesto for a refund.