I've been using this keyboard for editing my presentations and HA's in school. The Bluetooth pair works perfectly (Iphone 4s). The work makes a lot more fun than using the virtual keyboard in the iphone. Create documents quickly goes out of hand, in addition, also the music player can be controlled via the keyboard. Only downside is that the keyboard sometimes swallowed individual letters and you have to type in night again. However, this does not happen with every word. Thus, there is for this keyboard from me a strong buy recommendation, since the price-quality ratio is unbeatable.
(By the way: this review was written with the help of this keyboard)