Well I have been using my H8 now for over 2 months, almost everyday, and I can advise that if I use my Motorola phone with the headphones on bluetooth, I get terrible issues with interuptions and drop outs, (the only way to mitigate it was to turn off WiFi, Location and 4G!) still had issues whenever I wnet through busy stations on the train! It did improve slightly when i was upgraded to Andorid 5.1, but still not perfect.
As the battery on my mobile ran out too quickly using bluetooth, I decided to buy an iPod Nano, and what a difference! No drop outs, no interuptions, it is a joy! I also do not get issues with my Laptop using a bluetooth adapter (it also uses wifi to connect to the interent, and no issues there either), and as such I don't think thew blame for the bluetooth issues can simply be put at B&O's door, unless i am simply being lucky!
Now I am free to listen to my music perfectly without anyissues, and my mobile battery lasts! The only pain is not being able to use the H8's for chatting on the phone, as they were great for that, but a small price to pay for flawless music delivery!
Also saw a guy the other day, nudge his wife as I walked down the stairs at the tube station, and point to me and as I had the headphones round my neck I heard him say "Look, those are the headphones I want!" Also love the fact you get left alone by Chuggers and the like, as they presume you can't hear them!