The machinist in me looks at reloading equipment this way......
Here is my take on ANY press or die set, manufacturer notwithstanding....
Any press will only be as accurate in resizing/bullet seating as the dies are accurate.
Personally I buy the best dies I can afford, always. Price predicates quality and close tolerance machining and that's what good (expensive) dies are all about.
As far as the press itself is concerned, if you reload small caliber, massive presses aren't needed because the force (on the ram) isn't excessive, however, larger calibers are a different story....
As with machine tools, reloading presses, especially presses capable of resizing larger calibers need to have physical mass (frame) to resist deflection of the ram when you reef down on the handle when resizing. Then, there is the ram itself. No matter how massive the frame is, if the ram is not adequately supported in the base (by that I mean the bore through which the ram travels upward), the ram will deflect some amount (tbd) and that causes many things, most importantly, deflection of the brass as it enters the die and begins to resize and that can cause neck concentricity issues as well as stuck cases.
Bullet seating is another matter because the ram isn't exerting a large amount of mechanical effort on the brass to seat the bullet, deflection is lessened.
I don't progressive load (rifle cartridges) so I use a Rockchucker. It has adequate bearing surface for the ram to slide in, a hard chrome ram and the mass necessary to resist deflection when resizing.
I also use a Dillon Precision progressive press and Dillon die sets for my pistol reloads.
Many opinions on FL resizing versus Neck sizing. I tend to FL resize all brass whether new or once fired (as in .223 Mil Brass) and so long as the cartridge is fired in the same firearm, I neck size at that point, always checking case length and trimming as necessary to chamber or to maximum case length when used in a semi-auto.
All bottleneck cartridges 'grow' with repeated fittings and all cartridges, straight wall or bottleneck get harder (in the neck) with repeated firings. At some point without annealing the necks, they will crack and the brass becomes scrap....
Just scratch'in the surface here.....
Annealing is another story for another time.....