To me it seems as if you don't have enough
quanta, especially those hourglasses are pretty much useless for the first few turns and even more if you don't draw those pendulums.
Also, it seems as if it's nearly impossible to sustain more than one at once. So as you stated they more serve as PC decoy with some occasional extra draw. If so, you'd be better off using enchant artifact.
But I haven't tested it, so I might be wrong. But it looks starving for more
quanta to me.