I just bought some and have been experimenting with them. I have not yet formed an opinion on the quality of the brass itself, but I have been very impressed with the fact that all the cases are with in a few tenths of a grain from eachother. Not grains, but tenths of a grain! That is important to me. Also, the flash holes have been de-burred and the necks have been reamed. This all saves time for me as well. All I have to do is turn the necks, uniform the primer pocket, prime and load.
Its the concistent weight that makes the worth the extra $$ to me.