This encounter is not as much about being difficult but just being coordinated. We chose to do it with only one tank and the raid, other than those driving Rhyolith, stack close to the entrance, where I also tank all the adds. It worked out really well for us and we have since opted to always solo tank the encounter.
For me, the fight is very unique and a lot of fun. It is certainly very different and something totally new to anything I have seen Blizzard produce so far.