Just as the general opinion calms the issues (as no one had them), you over-exaggerate them. And no, I'm not attacking you (before you think that), if you go back you may notice I quite aggressively acted on the muting issue, but it got fixed so yeah...
You are completely right with the returning, but that should be the case with every expensive hardware you get. I pretty much 12/24-ed my TV for 8 days (standard return time here), and so did with the MRX, the speakers and will do with the sub. Everything can be faulty, and I expect that. Also Anthem support was a pleasant experience for me.
As for your opinion, it is on the other end of the scale IMO, making you similar to the aforementioned fanboys. No problem with this of course, you had a bad experience and all, just try to not sound like you are the "all-knowing resistance". What we strive for should be a balanced viewpoint: There was one SW issues I encountered, and it was fixed. Feel free to add your own. Oh also no 192/24 over SPDIF, that's nasty. Some people like the support, some don't. Also we have Nick here which is nice. There are some HW issues, but still, the majority experiences no problems. To me this seems very common with electronic device brands. Nothing extraordinarily good or bad either.
Just get a replacement, test it and hope for the best.
2-channel is just multichannel done badly. - Frank Derks