Ok, since I've made a few smurf accounts during the Operation Shattered Web to do the missions and hopefully get some good rewards, I was forced to play CS:GO without prime and I want to share my experience regarding that matter.
Many players had the operation coin, which left me kinda wondering, because no new player is willing to pay for an ingame pass to grind when the game they play is free, right? And here is the clue, you could level up faster, because of bonus xp and xp-boosts. If I remember correctly, you would get a xp-lvl up for every 6 missions completed, meaning you were able to get to level 21 rapidly. You basically bought Counterstrike for AND skins that would make you your money back.
I also encountered many cheaters, which was expected, since no obv cheater would buy the game; they would get banned very fast and would have drained money down the sink. And well, no one was actually playing good, because they were all either beginners, smurfs or cheaters, though I encountered smurf very rarely, which was also kinda strange.
But yeah, this is basically my experience; I would love to hear your experience so far ^^