Cheap or Inexpensive?
If this works, it appears to be a pretty nice looking keyboard for $20.
This will be one of the trio of primary interface devices that you use the most. Do you really want to scrimp on your monitor, mouse (pointing device), or keyboard?
I read a few of those reviews as well. They seem descriptive enough. If you want a Bluetooth keyboard that looks like the Apple Wireless Keyboard and do not require Apple quality then the Anker T300 might suit you. It does not however, deliver the full Apple keyboard function set or seem to have the authentic feel, look, or value of the genuine article.
One comment about those reviews on Amazon. Several of the writers mentioned that a positive feature of the Anker keyboard was the superior value of the product. Perhaps they used the wrong word. Those reviewers liked the $20 price of the keyboard. It has a - cost - advantage over other products including the Apple Bluetooth version. Despite the fact that many prefer not to pay $69 for the Apple keyboard, it has a much greater - value - than the inexpensive alternative.
I type. The feel of the keyboard that I use affects my accuracy, speed, and comfort as I type. A person who uses the hunt and peck technique might not be so particular. When I purchased a Mac, I splurged and chose the Apple wireless keyboard and the Magic Trackpad.
For me, the Apple keyboard works fine with no issues at all. The appearance, feel, and quality are flawless. Although I purchased the Magic Trackpad with the thought of swapping it for a mouse when necessary, I have never used a mouse with this Mac. Now there is no way I would give up the set of gestures that OS X offers to a trackpad user.
Even with a discount I paid plenty to get a Bluetooth keyboard made of aluminum and equipped with authentic chiclet keys. The same cost got me a square chunk of aluminum and glass.
For me these controls were worth the cost but others will have their own opinions. A few forum users seem to scorn the Apple keyboards. I suggest that you read more Ankar reviews and then read some for the Apple Wireless Keyboard as well.