I am an odd one here.
I had a 61" hybrid over my 180 and loved it. I am running LED only over it now, but this was only due to how my rock work is after a re-scape. Due to the rocks now sitting midway in the tank with almost equal distance from rock to glass on both sides, I no longer needed it. There were no issues with shadowing, like their previously was, so it got moved.
It is now over my mangrove lagoon and is there only to stop shadowing. The mangroves are growing and the LEDs for it just were not doing the job (tank is 7' x 3' x 16") with lighting the items around the mangroves. So the light now provides most of the par for what items I do have that are beyond the spread of the LEDs. Luckily the tank is shallow, so the T5s mounted up high provide enough light for those items to thrive.
I will say this, I do miss the t5s over the 180, just for looks in the tank and how they reduced some of the shimmer. There was a faint shimmer there, but looked more realistic with them.
So, I kind of regret taking them down from over the 180, but only for looks.