Many typical stupid responses as expected. Yes, it's hard. I have only done it once and that's with a regular team that drug me along for the ride. I've tried many times with LFG made fireteams and we rarely get past the first round. There's a lot to coordinate and do and one death means a wipe. I think regular fireteams that have played together and always play together have an advantage here more so than on other raids and challenges.