Having had the Galaxy Note 2 for 2 months now, all I can say to your so-called reviewer - just stop and get another job. This article not a review, but an opinion piece by an clearly clueless person.
1. The way you described the audio sounds like you expected a mini hifi. The Note 2 has the best non-headphone audio I have heard in a while, and professional testers with professional testing equipment agree. The Note 2 rate along the iPhone 5 for audio quality(not my opinion - tested fact - gsmarena and this link
http://www.head-fi.org/t/625054/samsung-galaxy-note-2, audiophiles rank it just below the Iphone 4S, quite an achievement). I use my phones speakerphone facility a lot in business and the Note 2 is the loudest, clearest I ever had.
2. Not a well crafted phone - Jesus , you stupid arseholes keep coming up with that BS because of the plastic. Guess what, having had the so called inferior plastic phones for 4 years plus - they are not f..ing inferior. My old Galaxy S2 have 7 major dents as the only evidence of falls above 0.8 meters onto concrete and tar. The so-called superior Iphone 4 had a major problem with falls, the Iphone 5 fixed that, but at the cost of highly visible wear and tear on its anodized aluminium. If they used polycarbonate the note would have required a wheelbarrow to lug around(evidence the Nokia 920). From an engineering viewpoint the note is made from the right material, and it feels solid. Plastic has stopped being cheap and inferior a long time ago, we are not in the eighties anymore - wake up.
3. Touchwiz - Let me guess. You have read previous reviews of Touchwiz and felt you had to say something like bloated and abysmal. On the Galaxy S2 I changed my UI. On the Note I haven't really felt the need yet. It's not the best out there by far, but it has improved quite a bit from previous versions, and the bloated and abysmal comment point to a lazy review based on old opinions of Galaxy Touchwiz.
The note 2 is not perfect by a long shot, but the points made in this review does not reflect reality. Poor, poor review MyBB.