I find it works great for face work, especially on hard dry wood.
I tried it once on green wood and had to keep tightening the tailstock; by the time I discovered the problem it was 1"+ deep in the wood (the steb and exposed shaft was buried and 1/8" over the spindle threads as it "drilled" its way in.
It works ok for me on spindle but since I have to mark the center anyway I may as well cut the cross hatch for the four-prong. If you are really pushed for time you can do as shown in some video and remove and replace the item without turning off the lathe.
For learning a "safety center" works well. This is a dead cup center for the tailstock that someone put in the headstock and renamed. Mine was $4 new with an adjustable point; a "safety center" for the headstock sells for $18 and up. Alan Lacer used a dremel to cut 3-4 shallow dips to increase drive. I think flattening the end about 1mm or less achieves the same thing.
All tyranny needs to gain a foothold is for people of good conscience to remain silent. Thomas Jefferson