Someone asked about the On Fire meter, it's just there to show who is playing well. You can look at your opponents and see a "fire" area by their character in the selection screen as well to let you know who's racking up on their side. You don't get a boost or extra damage etc...
I have it on PS4 and it's great, but I think if you have the option to go PC or PS4, you go PC.
I am hoping it has legs on console in the future, especially if they can get cross play with PS4 and the Juan, but I am almost positive youโll never have an issue with finding games on PC.