-unique blend of genres (team-oriented TPS with MOBA elements)
-intense,fast paced gameplay,old-school feel (not as fast as Quake but its definitely not a campers game)
-dedicated dev team
-not P2W (ingame shop sells ONLY SKINS)
-balanced weapons,wide selection to suite any style(all types of rifles,launchers,lasers,melee)
-melee weapons that are actualy usefull and realy fun to use (altho swords suffered a nerf because noobs cried and cried about it)
-class/role customization when choosing armors with stats (you can be slow and tanky or a fast DPSer with low HP,supporter/healer/debuffer or anything in between)
-you can jump into action right from the start even if you dont have anything unlocked as long as you have basic shooting/movement skills needed for a shooter game.And some teamplay+map awareness)
-good maps (disregard comments about little content,i mean Counter Strike was played basicly on 4 maps for 20+ years and it never felt like it needed more content.If anything,this game only needs more players)
-For me,just one:relatively high hardware req. - I am forced to play @1024x768 with graphic set to minimum, on i5,nv550 1gbVRAM with 6gb of system ram, devs recommend at least nv780.That being said,my gameplay experience comes down to spending 50% of my energy trying to compensate for issues like rubberbanding and hits not registering,and thats why i dont play this more than a couple of times a day.It seemed that a game that has cubes with no textures as models should run on a rig thats way weaker than mine, and thats why I purchased it, but thats not the case. It's dx11 only with fancy shadows and it kills the performance for me.I would be perfectly happy if the devs worked on optimization only,convert it to dx9 maybe(that one hardly tho) and made it available to broader, lo-fi audience.
Original design,unique gameplay,something fresh and different among all generic,shallow titles or money grabs/scams on Steam.I like to play it despite above mentioned relatively high hardware requirements.
Also,devs have promissed LAN support to be implemented soon,