Original white Bones is terrible and Reaper should feel bad....
It's fine on a limited range of subjects, eg big, chunky, high-volume sculpts without a ton of fine surface detail. A lot of terrain, for ex, and big monsters that would be prohibitively expensive in other materials. It sucks on most human-sized stuff, anything with small, bendy bits, and ye gods it's bad at hair and fur and many faces.
Would be nice if they'd transfer some of the more problematic figs to Black or the new USA material, though.
...They did and came out with Bones Black which is much, much better.
Granted, although it's still not a joy to clean mold lines on and some (maybe all?) of the multi-part kits come pre-assembled and often need gap filling.
The newer USA stuff seems even better to me, although it's not quite as firm. The fact that it isn't made in China's kind of a big plus in my book, anyway.
Metal is still superior.
For some things, sure. At least Reaper didn't pull a GW on us and just drop casting metal overnight. They're even still releasing new figs, although the rate they add to the metal ranges has dropped dramatically from the pre-Bones days.