Summary: I've owned these for a few weeks now and I'm very impressed with their weight (light but feel very premium), audio quality (just right for me, but less bassy than some of the 'headline big-bass' earphones) and ear-fit. On weight, the cable is light and doesn't drag too much on clothing for me.
Summary: These are by far the best in-ear headphones I've owned and would recommend them. It does feel like you're hearing much more detail in the music - even when I've been on trains and planes. They are comfortable, and the rubber ear pieces stay in well and block noise very effectively.
Summary: They are well made, they sound great, if a bit too analytical. You need good music source (flac or similar) and a good player to get their best out. Good enough for a recording engineer. If only they had made better ear fittings, I would have given them 5stars.
Summary: tl;dr at the bottom I have owned expensive IEMs in the past, but they broke a while ago and I've been surviving on <£50 for quite a while now, so I am by no means an expert. These earphones have had 12 hours of burning in time now so I trust they are at their full capacity to play music.