They're not that bad in terms of build. You just can't carry them around in your pocket like I do. I bike around a lot and bring them everywhere with me, and then the strain reliefs broke. Plus the microphonics are pretty bad.
If you're just using them at home it should be perfectly fine. They are great sounding IEMs. And helped me discover my favorite sound signature.
Unfortunately I do carry Iems in my pocket non chalantly, but I guess I'll hav to avoid that now ^^. For active use i use my se215 the most I'll do with my miles davis are walk, I don't get too bothered by microphonics though. By any chance is there a hook or a guider that will make over the ear wear easier?