Just bought an ATV3 a couple days ago and decided to write a little first impression review.
It's a little long so I put it on my personal blog. No ads or anything crazy like that.
http://www.roxics.com/apple-tv-review-3rd-generation-2015/
I personally think that fewer words and more photos would improve the readability of the article.
Airplay is one of those things that I understood from your description only because I own an Apple TV myself and am intimately familiar with its various functions. To someone who has never seen or used one before, I doubt they will grasp the concept as easily. This would be the sort of scenario where a picture speaks a thousand words. Post a few screen caps of yourself mirroring your iPad home screen to your TV wirelessly, or air playing content from your iPhone. I think it will help make your point more easily.
Also, the Apple TV now supports peer-to-peer airplay, which basically does away with the need for a wifi signal (your Mac or iOS device connects directly via bluetooth and its own wifi chip). The end result is that mirroring is often smoother because there is one less "intermediary" to work around. It's not really an issue at home when your Apple TV is likely connected to wifi anyways, but I have found it to be useful in workplaces as a means of mirroring your Apple devices to a larger screen.
I don't see the point of the specs either. It's meaningless in that it doesn't really tell the consumer what the performance of the Apple TV will be (there's no equivalent reference point). Is 512mb of ram supposed to be sufficient for the ATV to run properly or not? So what if it uses (or doesn't use) a modified A5X processor? That it runs iOS isn't very meaningful since it doesn't share apps with my iPhone or anything.
One interesting thing you may want to point out - you can't mirror the youtube app from your iPhone to the ATV, but the Protube app works. So it seems the problem is with google's implementation.
Overall, I find your article a tad bland. The ATV is 3 years old. People have had ample opportunities to read about it and experiment with it. You are not reviewing the latest Apple tech. I think more personal opinions (like how you find it, how it has fit in with your daily life) would add some much-needed personality into it and differentiate it from tech reviews that already exist. I mean, what's stopping me from dredging up an old Anandtech review if I want to revisit it?