I went to his place for the first time a couple weeks ago. I was kinda overwhelmed, I had no idea there was a facility like this in town. I'm really excited to be able to hang out there again and get more of a behind the scenes tour.
It's not so much I'm worrying about PAR, I'm just into seeing the backside of my 'scape and add some visual depth. I suppose cleaning it could be a pita depending on tank size.
...Or you show them a picture of a nice tank setup online and they just see a canopy covering the light and say "That's what we need" and you take it as a green light to get a 180gal.