One negative thing I find about this DLC is that it's very difficult to get a treasure key, whenever I try to farm for them it usually takes hours just to get one key. So why not make xur or someone in the tower sell keys? I'm sure many players have a over abundance of strange coins, so why not have xur sell a key for some coin? I think it'd give players that don't have time, a better chance at getting keys faster & easier.