2nd Day of ranked: 7-3 so far, with most games being fairly easy and only getting a few games (mainly the 3) that contained trolls/feeders.
I know I don't have a lot of experience to comment yet but from what I've seen so far ELO HELL doesn't exist. In all my games the players on the other teams raged about how unfair elo hell was, how all the players they were paired with were terrible, and that the matchmaking system was completely unfair.
What I also noticed was these same players not co-operating as a team, raging for no reason, and constantly putting their teammates down whilst neglecting their own faults.
Now, I don't mean to get on a high horse here. But I've already hit Silver, never played ranked prior to this season, only have about ~500 games under my belt, and the only ELO HELL I saw was the one players were damning themselves too.
I went in with a positive attitude, never pointed out my team mates faults (or if I did, just joked about it), always made sure to congratulate them on kills and good plays, constantly watched the minimap and well - the results speak for themselves :/.
I'm guessing this has been said multi times by now, but now that I have first hand experience I can wholly contribute - ELO HELL is a myth. You only end up there if you belong there.