FL Studio is a gem of a DAW if you are into electronic music. It is easy to use and hard to master so it caters to a wide range of people. There are a couple of advantages over the competition and the biggest one would be that this program has lifetime free updates. So if you buy FL studio you get lifetime free updates for the version you bought. While there might be slightly better DAWS out there I bought this one because I am not a professional producer (I can produce but I am not earning tons of money with it) and if I take a small hiatus it doesn't hit my wallet much. I download the newest updates and get tons of new features for free.
Let this not deceive you into thinking that this is a program made for beginners or kids or whatever. FL Studio came a long way and is now a fully fledged DAW with tons of options and depth. And some of the biggest names have used this to make their hit tracks. The stock plugins have excellent quality too.
The music it is best suited for is:
Trance, EDM, Psy, Hiphop.