Killing Floor 2 has received a fair share of criticism throughout its Early Access stay as many of the promised features were either missing or so underdeveloped it would've been preferable if they were actually gone. Thankfully, the Killing Floor 2 of today is a far superior version as Tripwire has spent the better part of the year pumping out new content, weapons and classes to play around with.
To put it simply, so much new content has been added over the past few month that Killing Floor 2 is now inches away from its final release build. If you're wondering how close, the answer is close enough to set an official release date for November 18th:
"We can now announce that @TripwireInt Killing Floor 2 officially launches Nov 18 on PC & PS4!"
If you are so inclined, you can buy Killing Floor 2 on Steam right now, though I would recommend waiting until November. The developers have said multiple times now that the price won't change between Early Access and release, so why spoil your experience by playing the inferior, buggy version when you can get your hands on the real deal when it finally comes out.
Either way, if you would like to learn more about Killing Floor I would recommend you head over to the official website.