Started on the Breech Lock Challenger - that bent my reloading bench every time I tried to use the collet die, so I picked up the hand press...I can resize 50 6.5x55 rounds a LOT easier than the flexy-bench can - just squeeze it into the press and work out my shoulders/pectorals.
I load 80%-100% of ALL my .357, .38 on it. As mentioned by someone else, I can bring my press next to my rifle and tune the COAL bit-by-bit, and it gives a LOT better feel for seating than the bench press EVER could.
Between dies, press, a jug of powder, powder-scoops, trim dies, and bullet puller, I can fit my ENTIRE reloading set (for 1-2 calibers) into a small handyman bag. I've pulled down and re-loaded 9mm to .38 special cases at the range with ease. That reminds me, I could use the ram-prime system to forfeit having to use my lee auto-loader...
I would recommend GOOD lubrication, using the Lee toothpaste junk made full-resizing 6.5 a royal pain, but when I switched to Unique (Hornady), I could FL resize all cases from the hand press.
If you're seating LONG bullets in LONG cases (160gr RN to a 6.5x55 case), you'll have to tip the nose into the bottom of the die before sliding the two (die and case) into the shellholder on the press - it's a tad short.
After 50-100 rounds, you will want a break - it's LIGHT, but not comfortable on the handles where you're re-opening the press.