I use a Dillon 550B for my reloading (actually two of them, small and large primer setup). They do have some quirks, but they are easy to deal with. Dillon's warranty is awesome, as is their tech support. If you want precision, a single stage is the way to go, but it will be slower. As others have said extruded powders are not Dillon's forte, but they can be used if you do your part and don't mind the spread. I weight about every 3-5 rounds and discard the extremes back into the hopper. This works well for 'plinking'. For accuracy I use the single stage and weight each charge.