Been playing this casually a few weeks now and I have to say; it's like being sent back in time, but to a different time-line where Valve's focus on content was different.

TF2C is classic-lite, some QOL features from modern TF2 exist, but also so do some new weapons and game modes and while not every choice/weapon/mode sits right with me 100%, I've still been enjoying my time with it.

If you at all crave to re-visit the memory of TF2, but very specifically just before Sniper vs. Spy - then you gotta peep this.

There's a handful of "vanilla" servers that are regularly well populated.