Don-Been loading on a Dillon 550 since about 1987.
The few times I need'd parts, the "No-BS" warranty was just that. Dillon rebuilt the press about 5-6 years ago at no cost, and even paid for my ship'n it to them.
Of all the Dillon presses made. The 550 is pure KISS
I load everydangthing on that 550, except for 50BMG.
Still have my RCBS 'jr' press I bought in 1967.
Gary