I used them last year to mount a climbing hangboard to a plaster and lath wall. I used about 6 of them and I'm roughly 180lbs, it feels absolutely solid. I'll definitely be using them in the future for high weight situations.

After a lot of research I settled on SnapToggles for floor-to-ceiling shelving mounted to lath and plaster. About as easy to install as could reasonably be expected for the wall type and seems to be holding well.

mounted a tv in my bedroom into metal studs using snaptoggle, i love them.