I've got a few of those, and the THINKSOUND ON1 remain on my head most of the day, a lovely balanced woodie sound that is wonderfully tuned, and a good bargain for the quality of the sound.
the RE700s are better for making mp3 music and streaming music sound palatable, and have better bass for EDM...but have treble issues for other stuff. great late at night...
Zero Audio Carbon Nano Singulos are still a great sound in an iem for multi use that is a good bargain.. Ultimate portable rig: get a big backpack, a David Berning tube microZotal, power- able by a 12 v battery pack and Senn 650s. will boggle your mind and ears using Geek Out and a laptop thats the over the rainbow solution....equal to a 25K$ home system and usable in the rainforrest..