The RCBS Jr press will load just as good ammo as any press out there. Almost 40 years ago before I got my own reloading outfit I used a neighbors to load my ammo. As far as I know he is still using it.
It is hard to wear out a press. Certainly my RCBS Rock Chucker that I bought new in 1973 works as well as the day that I set it up. If I had a nickle every time that I cranked that handle I could go buy me a new car- and not a Ford Focus either.
I might stay away from some of the Lee presses- I don't care much for the aluminum ones- but a good steel press will last you the rest of your life. Probably outlive your kids too.