Avantages
Nice offices at Riot, they look after staff in a financial sense; as in you get food and free tickets and goodies. Riot drives its perks directly towards fulfilling its goal to keep Rioters in the office as much and as long as possible. I read another review, one of the real ones; where someone said it perfectly: I'll quote them, because I cannot possibly rephrase it more eloquently than when they said: "There are some nice people at Riot, some of whom will kindly show you the door if you're not a good culture fit."
Inconvénients
There's quite a few: For example, given that the most senior leadership tout how open an office environment and how flat a structure Riot Games has, they sure spend a vast amount of time in their dedicated conference rooms (read huge offices) behind their usual desks. I can't really speak for what it's like in there with them, because I was never one of the chosen few cliquey people who surround them. Hypocracy is rife, lies are more so. It's hugely corporate while claiming that it is quite the opposite. It claims transparency while having corporate communications locking down any negativity which could get into the public eye. I've seen the mails where senior staff/leadership are "Strongly encouraged to get those who will speak positively of the company." to post reviews, particularly if negative reviews have been posted so as to discredit them. Assuming you are cool enough with the bro-fisting elitism, vicious cliques and frathouse-like environment, you will also most likely be able to ingratiate yourself with those in the leadership and find a way into one of the bizarre 'circles of trust' which many of the leaders here appear to hold dear. Failure is not tolerated in any manner, unless you're favored - in which case you're all good, man. Don't expect clear targets/goals or expectations from your manager, that's not cool enough for Rioters, this means you have to hope you're in that circle of trust and use your divining rod to work out if you're on track, but if you're not - Riot is proud of moving people on, so don't expect to have an opportunity to address your issues. Communication from Managers, some more than others is exceptionally limited, so that's another consideration. Reviews, guidance, coaching...mentoring....yeah, no. Not going to happen. Expect to be brain-washed, you'll get more random Riot merchandise than you can shake anyone's stick at. Which is great if you like that kind of thing. You'll probably be marked down as a non-believer though if you're not seen wearing that Riot gear regularly, or not playing League of Legends as though it was the air you breathe, or working 60+ hour weeks...I'll save you the rest of the list. It's long... If you're a drooling frothy fanatic for all things League of Legends who sleeps with a Teemo doll at night and wakes every morning to your Lulu toothbrush and re-runs of LoL E-Sports, you will probably enjoy the cult that is Riot Games regardless of all of the above. If not, it all depends on your tolerance for poison.