If you're familiar with the Moondrop Chu, this is a Chu with even better tuning, and a detachable cable (a good quality one at that). Better quality bass with a little more kick, lower treble peak is gone. Chu probably has more comfortable stock tips, but said Spring tips also mess with the bass quality.
Both suffer from lacking a tiny bit in the lower mids and the mid-treble, but at this price point they're still #1 and #2 unless you like Final Audio's house sound and can score an E3000 for $30-$40. Normally this is priced at $33-$35, so it's a solid discount.
If you want a cheap IEM that's really good, this is it. Enjoy!
Also fulfilled by Amazon for $3.60 more in most colourways if you want a faster shipment.
Exactly what I was after, thank you.
Review for anyone wondering.