I have been playing face.it a lot more than i have been playing matchmaking. I think 128 tick is much better/more fun than 64. Also, you don't play with smurfs because you only play with people in your own rank. I was playing yesterday and i got matched with people that were definitely from a much higher rank than i am (since i am unranked i got put into a high ranked game) and i learned a lot from it. Face.it also uses the veto map system where you veto a map until you end up with one map left and then you play on that last map (its usually cache lol). But anyway, the thing that i like about face.it's ranking system is how they rank you. They put you into a low ranked match first, then a really high, then they put you into a mid ranked match and then based on the rank you did the best at, you get placed there.
They also let you play on different servers around the world. I played Oceania and the map was inferno, o sucked ass and my team called me a "loving cunt" because i wasn't watching my teammates back and he got killed. He said "Kenny where are you watching, he's in apartments you loving cunt". I stuck to US servers and i am doing well.