I don't see it in the specs but I would guess that light having a 24" x 24" coverage. The Basic Blackboxes get the same coverage for a good bit lower price point(you can remove the lenses and get a bit more coverage and with the tank depth that wouldn't be an issue IMHO). You may want to look into a DIY setup for a 60" tank.
For grow out, even spread and good color (and I know you said not interested) I think T5 is the way to go. To keep down on shadowing you may still want a couple bulbs even when LED is your primary light source.
I have one and like it but i only bought it because they were offering 100$ off. Their warranty seems to be top notch. If you go black box i would stay away from the COB ones so if you have a diode fail you can just replace it. I did order some diffusion film to cut back on the disco ball effect tho.