After waiting for about a month, I finally got an invite from OnePlus itself to buy this phone back in Jan 2015. Then it used to come with the Cyanogen inscription on the back. Called the Flagship Killer, it destroyed its competition. Premium build quality and awesome performance, it was worth every penny. I have been using it till date and never experienced any issues. And the best thing I like about this phone is nothing provided by the manufacturer, but the community. This phone has such a great community support, that we have almost a 100 ROMS. Until now I have flashed CM, COS, Oxygen OS, Hydrogen OS, Colour OS, Flyme OS, MIUI and the list goes on. Also whenever a new android version is released by Google, OPO is one of the first phones, after the Google phones, to receive the latest android version, again thanks to the community support. Right now am running CM14.1 on my OPO. Soon I will be flashing Lineage OS since CM is no more. RIP ??