Hi Brian,

1) I find the Core Control app great. Not as involving/immersive as C10/C15 but you can find/search for what you want pretty quickly or just 'swim' through your collection with ease... or search for new music using Rhapsody/TIDAL and add it to your collection.

2) I have used the RCA outputs from the MC200 for my STAX headphones and it sounds pretty good. If you are looking at getting some DSP5200 then I recommend a SpeakerLink pair.
These should have the latest EBA software giving better sound quality and using SpeakerLink (Ethernet cable) it's very simple regards to cabling (more convenient).

3) Easily backed-up to a PC or PC with external hard drive (my preferred method) using the Control:PC software.

4) I've not tried TIDAL yet as I'm waiting for MQA to be incorporated... then I'll give it a trial.

Even after listening to my main system, I'm still amazed at how good the MC200+5200 combination is. With the latest Sooloos updates on MC200 + EBA software on my speakers, its never sounded so good. You can always add an MS200/MS600/8X8/ to upgrade the sound quality if desired.

As others have said, there is a lot of uncertainty as to what will become of Sooloos/MDMS, how/if it's going to be developed. This is the gamble.

For me it's more about the quality of the music than the graphical interface (even though Sooloos has had a profound influence on how/what I listen to).

Even if Sooloos wasn't developed in the big step we've all been hoping for, for me it's a single box I leave switched on and lets me enjoy my music like no other system I've had in the past, without much hassle.

Meridian offer me a quality/Convenience that I'm happy to stick with... even happier with some MQA content to listen to.

I hope this helps a little.

Darren


Music Room: 818v3, DSP8000SE (SpeakerLink cables), iPad control
Shunyata Denali Power Distributor, fed by SIgma NR V2 + Sigma digital(818) + 2x Alpha NR(DSP8000SE)
Network Acoustics ENO filter + Rubicon Switch(powered by IFI IPower Elite)

Office: Stax SRS2020 via ifi Signature
Spare: DSP5200 + MC200

Running Roon Core on SonicTransporter