Once upon a time, I could spot a Reason- / FL-produced track a mile off. Now, not so much.
Both those softwares have come on in leaps and bounds, Reason in terms of sound quality, and FL in terms of features. There are many succesful producers who use those two, and imo no-one should feel 'ashamed' of their DAW, especially while you're in the learning & growing phase.
If you're reading this and a newish (or even moderately advanced) FL user, and your tracks sound mushy... or they don't 'sound like when I was playing them' when they render...
GAIN STAGING. Look around your DAW and look at how many volume controls there are. It's been a while since I used FL, but from memory... a vol on the main arrangement window... a vol on each sample... multiple additional vol controls in the step sequencer... vol faders on the mixer... additional vol controls on most vsts... considering each one is a potential clip, you can see how people easily mess up the gain staging. Make sure nothing is clipping all the way through all the stages (unless you're writing hardstyle and want it to clip
). Secondly, unless they've changed it, as well as a quality setting for the renders, you have one for the live mix engine. If you render at the highest setting but listen at 6-point hermite, it's going to sound different when you bounce stuff to audio. Likewise, if you're bouncing down to audio to save cpu / achieve processing techniques, and you're doing it at 6-point hermite, you may as well be bouncing to mp3.
I use Cubase now, but lots of my friends use FL... anyone who belittles your DAW isn't worth your time.