This Backbone One is the ideal way to take gaming on your iPhone to the next level. Today's smartphones are powerful enough to run a wide variety of games, but touchscreen controls often make it less attractive. Backbone solves that problem.
Slide your iPhone between the slide-out controller, click into the Lightning port and go! The Backbone does not require additional power, but pulls it from the iPhone, which is not too bad in terms of power consumption. However, gaming itself does cost quite a bit of battery power, depending on your iPhone model. Fortunately, you can connect a Lightning charging cable to the controller. An audio jack is also present, so you can just use your wired headphones.
The Backbone app is a handy way to keep all your controller-compatible apps together and serves as a home screen. The app is also a great way to discover new controller-friendly IOS games. There is a Backbone subscription for extra functions, but this is not necessary for the basic functions and not worth the money in my opinion.
Personally, I mainly use the Backbone One on the train and bus, with games like GTA San Andreas (once you needed a PC for that, but now you just need it in the palm of your hand) and racing games like Asphalt 8. On location with a STRONG WiFi connection, thanks to PS Remote Play also has access to everything that is currently installed on my PlayStation. Works great, but make sure that your console at home is in the rest mode and not completely off. It is also recommended to connect that console to an Ethernet cable for a stable connection.
All in all I am very satisfied with the experience. It's not a cheap device, so if you only play Angry Birds and Fruit Ninja, don't buy it. But for the First and Third Person Shooters that are currently available on IOS, racing games and PS Remote Play, this is definitely worth it. It would have been nice if a storage case was included for this price. I'll have to look for that myself...