That HF workbench will probably be fine to start with. A reloading bench is totally a personal thing, it's up to the individual to determine what's "perfect" for him. As was mentioned, some like to stand, some like bar stools, some like chairs. I prefer an office chair with wheels and adjustments, and so does my back.
IMHO, to me, storage is just as important as the bench itself, so I put 2x12's across the legs of my reloading table and made one hell-for-stout shelf to store boxes of bullets and whatever else I can put there. Also made a little shelf unit from 2x12's just for boxes with thousands of lead bullets, and my toolboxes sit on top of it. Plus the old bookcase I sawed in half and put on the back of my reloading table for whatever I can cram on it.
But besides the table I pictured as my reloading bench, I also have another table just like it about 4 feet away as a workbench. I have a sheet of plywood on the floor between the tables, and I can just spin around in my chair and wheel between the two tables, for reloading, gunsmithing/tinkering, stock refinishing, or whatever I want/need to do. That's my "gun corner". Dang near everything gun related I own is crammed in there, and it's currently a mess, and overflowing. Then there's all the stuff in the garage.....
This is my gun corner (old photo), IMO it's totally up to the individual how you want to build and arrange your setup, depending upon the space and location you have to work with. I'm just redneck enough to "repurpose" other peoples' discards and will use things for years. That old filing cabinet has two drawers filled with primers and powders, but the lock still works. Hey, nobody sees it but me and the wife anyway......
Build some simple shelving with 2x12's, and a piece of plywood across the back to stabilize it, and that'll hold more weight than you can imagine. This thing isn't very big, but with all the bullets and the toolboxes you can't see on top, it probably has as much weight as a Chevy V8 engine sitting on it.