I had three of these back when. I still have two.
They are very fussy about which brand of primer they use and need keeping very clean but otherwise they are very quick.
If you do something wrong they are a pain to "back up" to correct things - a bullet puller is essential.
I am always looking for parts and spares for these (long obsolete) presses - especially the .38 spl version. Unfortunately RCBS have run out of most of the spares.
Try googling "Green Machine" and see what the Americans think of them - basically good doorstops!