Used to! I haven't touched it in years, but I have a few hundred hours in it.
I really enjoyed being a tricky little gremlin with Pyro and Spy, although I tended to spend a lot of time as Medic because I played on pub servers and wanted to win. I was never anything special but I held my own, particularly after the game went free-to-play and the skill of the average player dropped a few notches.
TF2 was also my first time hanging around with furries, as I became a regular on the OzFur servers for a while. I don't remember much, but they definitely had a much nicer vibe than the average server, if you didn't mind the occasional deeply pornographic spray. They were probably some of the first explicitly queer-friendly gaming spaces I spent time in—even if it did take me many, many more years to come to terms with myself.