Free updates for life. Period. It’s a good argument for using it, unless you have a Mac and buy Logic… or Audacity meets all your needs.
It’s pretty powerful for entry level folks who have no interest in playing instruments. FL Studio is popular with the beatmakers crowd. You can start making beats immediately, no audio interface required. With Cubase, Ableton, and other more traditional DAWs, it’s way leas straight forward for a beginner to install and have “music” in less that 30 mins. In FL it’s ready when the installer finishes running