I have used this product several times on the same house. Most recently to prime/ cover an 80"s peach covered ceiling. Dont ask.
It required 3 coats and there remained residual straining and frankly i was grossly disappointed with the results.
I was at my wits end on how to end this persistent peach problem.
A discussion with the builder next door suggested i use the spring ceiling flat plastic (bunnings). Its quarter the price and thicker so im told. Picked up 4 litres for $14. So this sounds dodgy? Right.
Well one coat later the roof was covered and finished. No dang peach bleeding through, just flat ceiling white.
Wouldnt have believed had i not done it.
Do what works .

I am using this over varnished wooden kitchen cabinets. I sanded the cabinets back to wood in many places, and I am still seeing yellow stains come through the second coat of Taubmans 3-in-1. I will attempt to finish the kitchen by lightly sanding the cabinets and doors, relying more on the paint's alleged ability to stick to gloss surfaces than its proven inability to block tannin.

Used it for in and out side work. Covers very well. However i have a stuborn old oil surface that it wont stick to BUT neither will red Zinzzer which stick to glass metal etc.

This paint really does what is says. I've used it as a base coat over old gloss paints instead of endless sanding and it works. As long as you clean the surface thoroughly it will stick. And if you get it tinted grey it will cover any colour, ready for your top coat.