Firstly, for tws sound quality is not the biggest priority for manufacturers. Portability and function is. See sennies tws (sorry sennheiser). The target audience of these consumer products is normally towards general public thus the boosted sound signature is typically used. Iems are targeted at audiophiles, people who seek sound quality. Even taking into account that there are many iems out that that sounds like shit but get high ratings.

Secondly, sound is very subjective. It depends on your preference, your songs and down to your ear canal. To avoid disappointment always demo products before buying. Fortunately for me I stay in the same country as crin so I get access to most of the stuff he demos in stall. Nvr had I tried to match tws to iems. Totally different products. Also, my iem rankings are totally different from crin lol.

The anc is working on such a small device that reduces its effectiveness. For the full anc u need to get a damn good seal. If u r looking for very good anc just go with bose qc or Sony xm4 headphones.