Thanks so much to the help of the community I now know how to make amazing rounded edges, however I am running into an issue. It seems that using the square/circle method has a flaw in that I can’t create a perfect half circle at the top of my rectangle, unless I am missing something.
The circle has to be so much larger than the square for the subtract boolean to work properly, thus not letting me get a “perfect” rounded top to my rectangle.
I have attached an image showing what I am trying to achieve. Huge thanks in advance :: )