Basically unplayable.
You either rank up five times after consecutive wins or don't rank up at all even after the 7th.
VAC doesn't work properly at all which means that you'll either lose you rank up games or will get unranked because of having a cheater on your team.
Competitive matchmaking isn't fair at all. You'll get matched against Silvers as a DMG.
No matter the rank, people on European servers are predominantly Russian and/or Turkish with zero or little English knowledge. Have fun trying to communicate with them.
If you happen to be a female, you'll never use your microphone, unless you are in the mood to get hate crimed.
Knowing that Valve probably has like 20 software engineers to support this game and it has become a way for them to milk people for money, we will probably never get to see prime CS2.
As someone with 950 hours in CS:GO – GG, they killed this game.