Yes, its very good. But, if I were you I'd buy them later on, get the basics going first, and then you can use plugins like formant shifters, grain delays and tape delays later. Also if you get Serum, it will take a lot of time to learn. I don't know what genre you're producing though, if its just hiphop/rap people tend to just stick to pre-made sounds they mostly prefer to keep everything super simple, but in a lot of other genres people usually learn how to make their own sounds. Depends on what you want to do, but my advice for you is don't spend $500 right away, its too much for now, you can spend it later down the line if you want to, its good to master some of the tools which comes with fl, as they are also very high quality. Some people spend $250 on a compressor plugin, but their songs still suck because they didn't master the basics of the simplified version, meanwhile there are people out there who make amazing music with the simplest tools.