The question of the warranty comes up with most threads on the Swage-It. In order not to derail the thread (too much I hope) I will comment on that towards the end.
I use the swage-it on a 750. I've had the press since Dec of '19. I'd guess I've run around 2K of 223 brass through (to process) the cases. I think my methodology is similar to most people here. Deprime on station 1, swage-it on 2, Dillon die and power trimmer on 3 and a sinclair case mouth expander on station 5. I still find I need to ream a primer pocket here and there with the Hornady tool. It's not a perfect answer, and there may better things to buy if you're on a tight budget like this past year has done to many of us.
With regards to Dillon and their warranty: Last November (of 2020) I noticed a chip in my (223) shellplate it was on the edge--The top of "U" as it were--and the case wouldn't come out of the shellplate and onto the discharge chute smoothly. Dillon never questioned anything and issued me a replacement albeit 3 months later in late January or early February of this year (in multiple emails and phone calls not once was anything questioned) They claimed a sub-contractor was the reason for the delay in not sending a replacement "the furnace was down blah, blah, blah"
Some people claim a reloading press is weaker and not designed to handle stress when pulling UP on the handle such as that motion required for seating a primer--or--pulling the expander ball out of a rifle case. I have no opinion on that I'm not an engineer. Although I no longer pull an expander through rifle cases; I would submit that in my decades of experience, I have had many cases pull out with equal or more force than is needed to swage the primer pockets.
Finally if I may ask honestly--where does Dillon state they won't warranty any damage (and how would they know) done fm a swage-it. They have a standard disclaimer that I could interpret to mean the warranty is void with the use of any non-Dillon part which I think we all could agree they do not do.
I hope this has helped and will not start too much controversy.