This game has the same great fighting mechanics that you come to expect from Nether realm studios, so obviously everything is super tight in the fight department. I easily give the ps3 or ps4 version a 9/10 simply because of the subject matter... i mean superhero fighting game.. winning, duh...
However, with the PC version, it's obviously only going to be as good as your rig. I have a fairly high end PC and experienced no problems, but I will say that the FMV in the game is not up to snuff, clearly Low res.. I have the game on the PS Vita as well, and the menu's and opening movies etc, look phenomenal on it (character models stink though, to keep it runnin at 60 fps) . on the PC port the FMV is actually letterboxed, and very shoddy.
overall though, if you are just looking to fight with your favorite hero's cheaper than the consol version and have a good rig, then this is a great buy. i think i got it for 7.99 on steam.