I have owned the Dillon square deal B ,550 ,and 650 and never had a problem that they didn't take care of for me .Thier tech-support is great. That said so is most of the reloader manufacturers and thier warranties. I have Rcbs progressive and a rockchucker press that I use now . I prefer loading most of my ammo on a single stage now that I'm retired and have a lot of time . Its a hobby so I enjoy what I'm doing .