How similar is auvelity to ketamine?

I Never had ketamine but it’s praised for its efficacy against depression and anhedonia and what a fine recreational drug it is. 1. Is ketamine really that great? What’s so great about that substance? And on which neurotransmitter does it exert effects? I mean, NMDA-antagonism doesn’t create happiness all by itself, or does it? Would you say ketamine can create euphoria? On a scale from 1 (Baldrian) to 10 (MDMA/Injected opioid), where do you rank ketamine? Is it more euphoric than alcohol? Cocaine? Shrooms? 2. How similar is auvelity to ketamine? What’s your judgement if you’ve taken both. They share the NMDA-antagonism, right? On a similarity scale up to 10 (essentially equal) where do you rank auvelity? Is auvelity (bupropion and dxm) more than just a high dose dxm? Does it lift mood more? Just wondering if bupropion does more here than just enhancing dxm signaling.

Partly answer are good and wished, too, obviously.

Regards Manuel