Five Star sound, right side driver failure before 3 months of use.
This is going to be a pretty biased review because these ended up fitting my smallish ears like a custom fit IEM.
Isolation - about 15dB; the vent for the dynamic driver is where you can get outside noise creep.
Tone - Neutral Warm, tamed treble, mids forward.
Build - Gorgeous looking gold flake inset to resin shell build, needs to be appreciated in person
Suitability - Almost any device as it's pretty easy to drive on low power sources.
I used this IEM's for gaming, music, movies and television. In all four of those uses it was pretty great. Slight ding for gaming as you lose some details compared to a high fidelity headset.
The real star of the show here is the tone which to my ears sound better than full size headphones costing more than twice the price. It's so good. If you are in the market for something under $300 that has a lot of flexibility consider this set.
My only complaint here is the cable, the build is fine, though a bit thick for mobile use; takes up a lot of pocket real estate.
Update - Within 3 months I've had a driver failure which is sadly not covered under any type of warranty. I will say that that prior to this failure the TEA sounded awesome.