I had two Dillon Square D for pistol, sold one and still use the other. Have been using it since early 90's, no problems. I have not heard anyone talk negative about Dillon. If you are only reloading for pistols and not shooting competitively, I think the money you would save between the Square D and the 650 would allow you to buy another pistol or two.
The Greatest Enemy of knowledge is not ignorance,
it is the illusion of knowledge.--Stephen Hawking