I have owned these for over a year. You are correct that these do not hold up well to a ATH-ANC300TW on spec but lets look them again when the Monoprice cost half as much.
I a readily able to get 6-7+ hours of playback with ANC without a recharge. I typically have the volume at between 40-60% when listening to music or on a voice call.
Regarding the bluetooth hiss, never heard it using my OnePlus 8 Pro. You are correct they only support aptx not aptx HD but at a $99* price point this is a push for me.
I also own a set of Jabra 75T to compare for overall sound quality. Before SoundID setup, I would agree that they are boring at best. After tuning to my preferences, I am quite satisfied. Not disputing the low power asic compared to the driver size where there are some gaps in reproduction but again ...$99*.
*These go on sale for $99 for what feels like ever other month.