Over the last year, a lot of valid points came up from a lot of knowledgeable people (although
Andreas Koch's points should perhaps be taken with a grain of salt, as he (still) seems to be pushing DSD), so it's a bit of a disappointment that MQA (the company) does not address any of these.
It is also interesting how MQA is not much of a topic on forums like gearslutz, i.e. on their mastering sub forum:
https://www.gearslutz.com/board/mastering-forum/
..there is one thread there:
https://www.gearslutz.com/board/mastering-forum/1101429-mqa.html
..where people are generally critical about MQA.
As for me, sometimes I hear a difference, sometimes I don't. Having a blue light on your DAC is certainly a powerful psychological cue leading you to be more attentive and perceiving music differently than when it's off (I feel).
Anyway, I'm still holding back my final judgement on MQA - I don't regret having bought the Mytek Brooklyn though, as it endeared itself to me for other reasons: I enjoy that huge informative display and the sound quality gave my Pre + DAC combination which I used before (and which cost almost an order of magnitude more) a run for its money. Just goes to show (to me at least) that in 2017 solid state audio, particularly DACs, do not need to cost several thousands of EUR. And the fact that I bought it off thomann.de meant that I did not have to interact with a traditional HiFi dealer, which to me is another big plus these days.
Ultimately I just like the idea of having a component that can decode all the formats I throw at it, so I can make up my own mind. I can also play back my collection of DSD albums on the Mytek (yes, all three of them) if I feel like it, i.e. it is up to me and not up to the designer of the component what I can listen to. Oh, did I mention the built in phono stage?