Didn't buy here but noticed the price has come down since purchase ($40 now). Functionally it's great as I prefer the xbo controller to the ps4 controller. Like some of the other reviewers, I thought the adapter broke after a few weeks of use when it stopped working after about 5 minutes. Use a PC/Mac, go to their website and download the relevant updater (no longer the same as the PDF manual). Run your app (it will download the latest firmware in the background), check "Controller Compatibility Update" in the lower left corner of the app, then plug the adapter into the PC/Mac USB port, click on the [Start] button, the app will update you. firmware to make it usable again (takes some time).