for semi, I would not get it for the mentioned reason of neck-sizing only above.
The cons of the Loader are:
========================
-slow (to some people)
-neck-size only
-people fear using a hammer to load rounds (does not feel natural

)
-priming with it sucks
-chicks (and neighbours if in an appartment) don't dig the sound of a hammer pounding on a piece of steel, especially when it has no useful purpose for them
-loading large amounts of rounds becomes tedious
-crimping is not consistent
Pros
====
-cheap
-proven
-portable
-PORTABLE!
-can load at the range to work up a load because it is portable (eh!)
-neck sizes only, so for for bolt action less brass work for longer life
If I were you, I would get the challenger press or whatever they are selling. I have a hand-press too (because its portable

) but for full-length sizing I don't think I have the required strength since I am a girly-man
But, the nature of a semi makes you want to pull the trigger much more than when you have to cycle the bolt....so you are likely going to want many rounds and the Loader is not really the way to mass-produce ammo. Plus, you will want to properly crimp and full-length-size your ammo, something the Loader is going to limit you doing.
I have a Loader and love it; however, the priming I do with a hand-priming tool (actually, I prime with this and not a press too!) And I sort of serialize the work (resize all, prime all, then powder and seat each bullet individually). I have worked out a system that I find works well for me. But this is for bolt-action, so no FL sizing or crimping with the Loader!
In the long run, if you are loading for semi, your best value is to get a cheap press. Look in the EE, you never know when one will come around. Post a wanted ad, maybe someone will choose to sell you theirs.
Good luck!
