In theory these lenses are pretty awesome. They are sticky which means that they can be used with any phones and digital cameras. Unfortunately in practice they aren't so great.
For me they just weren't sticky enough. By the time I pressed to take the photo the lens would be hanging off and covering the camera. I followed the instructions and washed the adhesive in warm soap water but this made no difference at all. I did wonder if they didn't agree with the case that I currently have on my phone, but realised that this wasn't the case when the lens caps wouldn't even stay stuck down in place.
The kit contains lenses to create a 6 image mirage, starburst and wide angle (fisheye). My favourite of the three is definitely the fisheye lens. The lenses work great, but annoyingly you will have to hold them in place.
These have now got me wanting to try more lenses on my phone, can anyone recommend any good lenses for an iPhone 5?