Although I reload mostly all rifle cartriges anymore, I used to load a lot of shotgun shells when I shot a lot of trap years ago. I still have my old MEC 650, and really never considered getting rid of it. It is a good progressive press in my mind, and about as simple and trouble-free as they come. I've loaded many thousands of rounds with it.
I'm not familiar with the MEC products of today, but if they are as good as they used to be, it would be a good choice, IMO.