Comparing it with the HD6XX for reference.

Fantastic build quality, but I'm not sure about the long-term usage of the connectivity pins. They feel a little flimsy to be honest.

Driving it with Schiit Magni and Modi gives it way more details in the lowest volumes. As expected, the Magni and Modi are an overkill for the IE300. The sound profile is much brighter than HD6XX. More Bassy and the mids are crystal clear. I love the accoustic guitar sound in these. Highs are alright compared to HD6XX.

And plus, I got it on the 50% off deal for the Black Friday. So I'm pretty stocked what I'm getting for the price. Definitely recommend it for the discounted price. I would be dissatisfied if I paid the full price not gonna lie.