Star lube/sizers are very good tools. I know, I used them for about 25 years.
They are also very expensive. The cost is about $250.00 for the basic machine plus $35.00 to $40.00 for a caliber conversion. You will also need several top punches. Caliber conversions are at best a PITA.
ALso remember, if you shoot several different type of, say 358 bullets, you may have to change the BB shot to plug different holes. Or if you have a really bastard size lube groove spacing, you may need another cusustom made die.
A heater is almost a must have, unless you use a soft lube. The inexpensive Lyman works OK, but the Magma Star is much better. The Lyman has no thermostat, it just gets hotter and hotter. The Magma Star has a thermostat.
Also, reloading the lube supply is also a PITA. You need to run the lube tube nearly dry, unscrew the cap, flip cap over, thread on to lube plunger. Then if using hard lube apply heat to pull the plunger.
I sold all my Star stuff on this board for approximately $700.00. Replaced it all with Lee stuff and Lars XLOX for about $150.00. My current set-up is so much faster and easier to use than the Star, even though I lube my bullets before and after sizing, I would never go back.
OK, I have my helmet on and am headed for the celler, bombs away!
Jerry