I have a k55 and I use it for an MMO. In december there was an update to the version software. Unfortunately after I upgraded, none of the macros recorded correctly and several keys mapped incorrect sequences. It was so bad that I had to shut down the software in order to use the keyboard for other daily use. I finally had to uninstall everything and reinstall back to the earlier version to get things to work correctly. Also-thank god I saved all of the gaming profiles to the archives, and exported them to a safe storage place or I wouldn't have been able to play. I have not and will not update it again unless absolutely necessary.
