Well I've now got over 320 hours listen time on my ADDIEM's and overall I'm loving the them, however all is not great.
Firstly the Apple medium tips slide off and get stuck in your ear canal after a couple of hours of listening, mainly due to the silicon compound becoming too soft. A microscopically small dab of aquarium silicon sealant sorted that issue (on the metal section after the screw on filter). It's still easy enough to remove the tip for cleaning and prevents it from falling off in your ear canal.
My second problem is with the rubber finish to the strain relief at the end of the IEM's, the surface finish is beginning to peel of, at first it just looked like a smudge of dirt; so I licked the tip of my finger and gently rubbed.
To my horror the surface finish started to peel away. I must stress that it was only a microscopically thin layer, so I took a piece of 1500 grade wet / dry sandpaper to the rubber; sanding lightly (wet, one direction) avoiding the plastic and had this issue sorted out within 2 minutes. It hasn't happened since.
As for the sound quality after 320 hours of listening, I'm loving them, they just keep getting better and better. I've listened to them amped and unamped using a LOD, Fiio E5 amp and either my 4th or 5th gen Nano. In all honesty there's nothing to be gained by using the ADDIEM's with an amp, if fact if anything you lose functionality of the remote by using them an amp.
IMO Apple really did a good job with these, producing dual armatures at a 'budget price'. If you own a Apple DAP have small ear canals (as I have) and are looking for a comfortable fitting, great sounding IEM, you could do a lot worst. Finding the correct size tips is really important with the ADDIEM's, I wouldn't describe my pair as being bass shy, in fact their perfect too me, the clarity is where they really shine.
But be warned, they aren't perfect and as I'm beginning to find out the build quality isn't 100%. If you can get them at a cheap price of Fleabay & can live with the build issues I've highlighted above, then go for it!
Despite by above issue's, the bottom line is when my pair finally bite the dust, would I buy another pair?
Yes, for the money (I paid less than £45 delivered) they are by far the most comfortable, best sounding IEM's I've ever plugged into my Nano.
P.S. As for the cable, I had zero issue's with the cable to report, it tangles no less than original apple buds or any other IEM I've ever used for that matter.