Tank looks good. For one light, you are getting great coverage. I have the 2’ x 2’ cube. I have 2 AI hydras with 2 reef brites. For soft corals you’ll be fine. I have a sps tank so I have to combat shadowing. Before dropping another 6 hundred on another fixture, I would check out the Aquaticlife hybrid t5 fixture. Drop the kessil in the middle.
Looks good. I Have the AP9X on my tank and it is way over kill. I run it about 35% max intensity, I have a 50g lagoon. You should be fine if your going to run softies only and LPS.
Got an a360x yesterday. One thing that's dissapointing for me is that the fan is not a smart fan. It always runs at 100%, even if only the moonlight is on. So i can hear the fan running in my room (my tank itself is dead quiet, no skimmer). My previous $70 China led had a smart fan, it was dead silent.