Sorry for the delay. I do have some brief impressions, what I lack is time.
So I'll just jump in: the housings are definitely big but I have not found fit to be an issue at all, and they are very comfortable despite their size. Build quality includes cheap plastic, no surprise there. Too early to tell how much of a beating they'll take.
Sound-wise, who are these for? I'd say the bassheads, but they are to my ears not overwhelming on the low end. What these have going for them is that they reproduce 80% of the sound quality of MEE Audio's dual driver model at a much lower cost. They sound quite similar. Definitely V-shaped tuning with warm and slightly recessed mids. Treble is nothing stellar but is also not sibilant which is a big deal for me as I'm quite sensitive to sibilance. At the low end, the driver designed for it produces punchy but not particularly fast sub bass, but that was never expected. I think the advantage if these is that due to the dual driver they're capable of producing a better sense of space and separation. I think they do an admiral job for the price with solid low end that does not subsume the mids, maybe warming them up slightly. In short, I want to emphasize that these are going to be excellent for hip-hop and like genres, top 40 type stuff, they're have an all around fun tuning, and with more burn in could impress even more as I don't think I've yet heard what these are fully capable of at maybe ten hours in.
The MEE dual driver model is the only IEM I know I've heard that would be direct competition (being a dual driver that is). I like Monoprice's DD model better I think, as MEE Audio really emphasizes treble more which seems to be their "house" sound, harsh treble. These are not neutral by any means but closer to a more balanced sound that I prefer given the V-shaped profile. Worth the money I think if you're into genres that emphasize low end, hell, I listen to mostly metal and am enjoying them even if I usually prefer more balanced IEMs.
