Cheers guys - that's the kind of replies I was hoping for!
Interesting Jeff re difficulty in noticing quality differences between streaming services - I'm glad you mentioned this as this was my main concern. It makes sense what you say. Thank you
I forgot to mention - recently just installed an Apple TV 4K onto my BV11 and liked the idea that the ATV now has a Apple Music App. Sorry to mention sound quality again.. but would the sound quality be better through the ATV Music app (obviously the using Apple Music Streaming Service) than with say Spotify > Airplay > BV11? I should also note my BV11 is connected to a pair of Beolab 9's which I think are a great speaker so eager to get the most out of them!
Spotify's Gapless Playback is cool. I can't believe the other MSS don't offer this, yet!
I tried the in-built Deezer when I first got my BV11. It was sooooo slowwwww. So won't be going Deezer. It's still a toss up between AM and Spot - luckily both are the same price for family sharing.
Thanks again everyone!