seriously, a lot of people will tell you how they were able to tweak their lee progressive and it works fine.
I've had a loadmaster for 5 years and I got sick of it and just bought a dillon 650.
I can tell you that the 650 is a pleasure to work with. It just works. It works all the time.
I keep the loadmaster for small batches of trial 9mm cast bullet ammo so I don't have to mess around with my 650 production setup. It's ok to powder, seat, crimp pistol ammo.