For those of you that haven't been able to run the matchmaking portion of PoE yet here's a rundown of the FAQs I've seen so far. It's level 28 and it's match made. You can get it at 26. The keys open a rewards chest available after the 5th and final wave. (Boss fight) There are 3 chests at the end. The key is for the biggest one. The event can be run multiple times on one character. The 2 small chests will always be there and will provide roc strike like rewards. (Blues and a chance at a purple) If you have acquired more keys you will be able to open the big chest as many times as you have keys for in one week. The even resets weekly and you will receive a key for completing it the first time on that character that week. The waves are randomized. Every enemy type has their own area. But you may see enemy types in another enemy types area. The enemies level varied depending on the wave. More shielded enemies on the higher waves. The final wave is a boss battle. Similar to weekly heroic strike level. Different burns or buffs depending on the wave and are again randomized. Suggest you go prepared with your favorite elemental weapons as the shield types vary depending on wave and enemy. My loadouts: Cabal- Vision of Confluence/WOC Icebreaker/Black Hammer Hunger of Crota/Gjallarhorn Fallen- Fatebringer Plan C/Found Verdict Gjallarhorn/Song of Ir Yut/Thunderlord Vex- Fatebringer (explosive rounds) Praedyth's Revenge/Icebreaker Corrective Measure/Gjallarhorn Hive- Fang of Ir Yut/Vision of Confluence/Vex Mythoclast Icebreaker/Black Hammer Hunger of Crota/Gjallarhorn Edit: Just ran level 32. I didn't get a key for completing the level and so I was unable to open the chest. This one had 3 normal rounds and 2 bosses. I'll post on the other levels once I've had a chance to play them.