Very subjective but here are my impressions after using it almost for a month
Pros:
- drives budget IEMS really well, using it with Tangzu Wan'er and I can't hear any difference between using this and a DAC/amp dongle
- nice battery life for the price (lasted me on an 8 hour journey with some intermittent breaks)
- the buttons work really well
- well built for the price
- USB C, charges quickly
Cons:
- not the most comfortable cable, I wish the cable was more flexible
- more battery life would've been nice
- hangs from your ears a bit weirdly, I'd have preferred if the button/battery housing was further down the cable (personal preference I guess