I'm gonna chime in as well, I've been holding back on giving my update on the IM70's but alas a few things that really bug me with these very resolving and mature sounding IEM's.
First of all, I am not keen on the fit for these IEM's. I've tried a few different tip's but just stuck with the comply due to best fit and sound. I find that I have waste a minute or two adjusting and readjusting until I find that the sound and fit is right. For comparison the CKM500's are much much simpler to place in your ear!
Secondly, the sound is pristine above the surface but as you dive in to the pond, there is something missing to the music! At times it is clear as daylight and others it's lifeless. I really can't quite say what it's missing (perhaps sparkle) but it at times it is a very clinical sound, very competent, very analytical! (Not a bad thing!) They are much cleaner than the CKM500's!
Lastly, I really do like these IEM's they are fantastic for the price! You get incredible good sound for the price!
But just a few niggles for me giving them 5/5, so as it stands I happily give them a 3.5/5 stars.
Big thanks to the OP for getting me and others on these IEM's, ATH are really progressing I feel; can't wait for newer incarnations in the future!
Special thanks to Rontant for being super cool and welcoming in the thread, hats off to you sir!