I wanted a cheap, cheerful Bluetooth keyboard to use with my Android mobile phone (Motorola Moto G), Android tablet (Google Nexus 7), and Playstation 4. There are lots of expensive Bluetooth keyboards around, and I can't see the point of paying £40 for one. This one seemed a bargain at £8, so I figured I'd give it a go...
Well, they say you get what you pay for. Often true, but you can also pay over the odds sometimes. In this case, I can't fault the keyboard at all. It's compact, yet has full-size keys. It's well-made and feels like a quality product. I have had no problem at all linking it to the devices mentioned above, and although I don't use it very often it's comfortable to type on (I hate writing long SMS messages on my phone, so I would rather turn this on and tap one out - works great!)
The only flaw I would say is it has a single-height Enter/Return key instead of a full-height one, but this is quite common (you see it on a lot of laptops etc.) and I quite happily live with it.
If you are considering making this your main keyboard then I would say it could quite possibly be a contender, as it's nice to use, but for that purpose I prefer something bigger, with more travel. For portability, and using with phones or media devices, you can't go wrong, especially as USB-based wireless keyboards are no cheaper and don't offer the range of compatibility.
I can't comment on reliability yet as I've not had it long, but I can't see myself breaking it easily and there's not exactly much to go wrong.
I will probably end up buying a couple of of these, they are so useful.