Some features I like in this game are how the game can be played in an either independent or team dependent base way and/or team base with unlock able weapons, taunts, cosmetics,items, among other things. Though people joke about this game and how "op" some set ups are or how "meta" some items are or how much their hat is worth(#HatFortress2) in the end of the day it's all up to how you play and if you had fun.

Edited: Though the game is "not as it was in its prime, when it became f2p", you can argue that it's "dead" as it has an active community and player base. After the whole wave of "Overwatch killing Tf2" I am confident to say that Tf2 is very much alive and a game that I continue to and love to play.