I've had a Loki now for a couple of weeks. I'd been meaning to try one and jumped when Schiit had some B-stocks available. I use it at work on a simple Magni 3 / Modi 2 system running Spotify mostly from an Android phone. A couple of months ago I picked up a pair of Bose quiet comfort 25 noise cancelling headphones on closeout for air travel. I try to avoid Bose, but 15 hour flights suck and I can't wear IEMs for that long. So I caved and bought the Bose fully expecting they would just sit in their case until it was time to fly. I started testing them at work and liked the comfort and their ability to isolate from the office chatter, Air Conditioning noises, or anything else that can distract. But in normal Bose style they don't sound very good. The midbass usually sounds too fat and the highs and upper midrange are really rolled off. With the Loki I set the controls to Bass=flat / MidBass= flat (or 11 O'clock) and then both the Midrange and Treble controls are usually around the 2 O'clock mark. This seems to balance the tone out a little and make the Bose a closer to a normal sounding headphone. I can confirm that the Loki has the ability to almost polish a turd. Not to a high gloss, but to a subtle, matte finish. Some day I'll bring it home to see if it can nudge the Koss ESP-950 in the right direction for me.