Welcome! Two at a time. Well, I've been here many, many...um...days, so I'll jump right in. (Can't seem to get the "multi quote" button to work.)
@slysy: I'm all about the Fidelio M2BT; I'm biased: Buy them!
@Hamm:
"So basically looking for some balanced headphones with enhanced listening for electronic."
Maybe not for you. M2BT are not balanced. They have a big bass bottom.
I've used mine daily for 1.5 years and have had no un-gluing issues or any issues, for that matter. I've seen pictures of how they can come apart on the ear pads. I think it has something to do with sweat. I don't do anything sweaty when I use headphones, so maybe that's why I've been fine with them. If they did come apart on me, I would just take a fine needle and thread and sew them back together with what I call a leather stitch (pull thread threw a loop...) A fine thread would not be noticeable on the ear. But that's just me. I fix stuff like that all the time just because I can.
Otherwise, very solid and durable. I don't have any BT issues either. They do engage and respond a little differently than others might, but it doesn't bother me--I'm in total love with the sound.