Point 1 is the main difference, Reckoning is quicker in general than menagerie (and easier mechanic-wise), however, the design allows for little room for error. Implement the same kind of punishment in the menagerie and I can guarantee you wont enjoy is as much. I mean, imagine menagerie, failing to complete the timer or one small mistake, and you have to start all over again? Reckoning was design to be challenging for everyone, menagerie was design to be completed no matter what, and then the introduce the heroic version for those who want to challenge themselves. And bear in mind that reckoning mechanics are ridiculously easy, I mean, couldnt get any simpler, what makes it difficult is the bridge and the stomp mechanics in combination with the snipers, if you take the timer out for instance the encounter would be dead easy. I havent played reckoning in a while, mostly because I know I either need to go with my well or I need to hope to find a half decent team to complete it. Menagerie, just jump in and you know you will complete it. How many reckoning runs have you failed and how many menagerie (non heroic) runs have you failed?