Completely agree with this statement "Z.ai and their GLM models are pretty low quality." I have been trying out and it's kind of useless compare to SOTA models.
For all existing models, including for all SOTA models, you can find contradictory statements, that they suck and that they are great.
It is very likely that all these statements are true simultaneously, because each model may succeed for some tasks and fail for others, so without specifying the tested tasks any claim that a model was good or bad is worthless.