What are you looking to keep under this light?
I am running Auroras on a 120g, a 300g, and a 325g. I use 36", 48", 60", and 72" fixtures. All doing great and keeping a huge variety of Corals happy. Only problem I have had was a T5 ballast die. But that was my fault for not giving the unit enough room to vent, so ballast just overheated, common issue with any manufacturer and user error, so not on them at all. As I am sure is the case with many if the complaints I have seen. No one ever likes to admit it's their fault lol
If you are gonna do SPS dominant, I would go with Radions for sure, and if you want T5, just add the AquaticLife Hybrid kit.
If it's a mix you plan to keep, and you want the look of a nice clean Fixture, the Giesemann for sure is a great answer.