I have had 10mm dies for 6 years.Lee stuff is okay for light production.
If you want to load something unusual like say a few hundred rds of .44Russian or .25-20 Winchester you can get going fairly inexpensively with Lee. With care you can make quality ammo.
Now if you want to load up 5000rds of 9mm or .38 the Dillon is light years ahead.
OP better post pics of his new Dillon or else.
BTW: buy a 10mm Auto tool head. I need someone to reload for it. LoL