From this fall, my (real) life changed slightly, so I needed something that can protect me from noisy labs and library. After several auditions, my final decision was bose qc35ii. Moreover, giving most of my head time to them (f***ing real life..) wasn't as painful as expected. WTF. I still don't think qc35m2 meets the audiophile criteria. But the gap became surprisingly closer than imagined. Long ago, heard qc25 briefly and was disappointed. Using digital camera analogy, I thought bose and anc cans were like crappy cell phone cameras while good hifi headphones were like decent dslrs from nikon/canon. Using the same analogy, now I am starting to think that qc35m2 (and competing anc cans) could be "pixel" (still cell phone camera, but takes really acceptable quality photos imho). They sound ok, and measure ok. Honestly I can immediately list ten hifi headphones that are less-ok. qc3m2 was that "ok".. Here are my measurements with minidsp ears and compensation curve version 2. For your sake, I also attach a comparison graph with hd600 (worn stock pad) and elex. LR channel matching was great. Measuring small over-ear headphones with artificial ears was a bit bothersome though. Treble was a bit too polite but amazingly cohesive-ish and smooth-ish. 2.5k peak was audible, but did not sound as bad to my ears as shown in the graph (this peak disappears in other compensations such as minidsp's heq or my original version 1). It added good amount of crispiness and crunchiness to instruments and vocals. Some parts of musics sound a bit rough though. Bass was kinda one-noted and soft. qc35m2 had very deep sub-bass but was not mid-bassy and that's good in my book, too. Mid was clean and never harmed by bass. This was surprising for my prejudice toward "bose" house sound.. Compared mark 2 with mark 1 with three different situations, and I was assured subtle but significant improvement (particularly in treble) happened in mark 2 maybe due to some running changes. Good job bose. Overall, very pleasingly dark and warm tone. (Artificially) mimics good traits of good hifi headphones. Fatigue-free and tuned/geared toward long-time listening. Distortion results (measured at 85db SPL) also look good. PS. Bose was historically known for superior noise cancellation. But that's not valid any more imo. I don't mean bose anc sucks. Sony now do better than bose -- 1000xm2 outperformed qc35ii. presumably 1000xm3 would outdo 1000xm2. Other competent anc cans such as senn px550 did equivalent jobs. PS2. What I liked qc35ii over other auditioned anc headphones was better tonality and comfort. Wearing comfort was truly superb. Insanely lightweight at 233g (=0.51lbs), quite loose clamping, good material choice for head/ear cushion, and smartly designed inner-space (very spacious regardless of small ear cups). Loved all of these. PS3. Hope google/alexa button (newly added to mark 2) is also compatible with apple siri in near future..