I bought these specifically for three reasons: 1. They have a USB-C charge port; 2. I trust the Anker name after using their batteries, cords, and ear buds; 3. They were inexpensive.
The sound quality is excellent, especially for $40 headphones. The EQ sounds pretty balanced and doesn't seem to color any tones. The bass is punchy even without using the "bass-up" button. With the boost on though it does rattle the windows in your head. I think it's only useful for EDM or music that is overtly bassy as it tends to muddy more musical genres.
I have not tested the battery performance yet, but I don't see a reason to doubt it. They fold up nicely for stowage though a soft-sided case would be nice.
Personally, my most important criteria was the USB-C connector. My Liberty 2 ear buds, my phone and tablet all have a Type-C connectors. I did not find anything else in this range for over-ears with USB-C and not from a random China brand of unknown quality. Even the other Anker headphones use Micro-USB so I hope they are updating them soon.
Very pleased overall and would definitely recommend to anyone.