It's pretty neat. In the summer when it's hot as balls outside, the room is nice and cool - for about 30 minutes, until all the gear and body heat brings the temperature up. At that point it's almost unbearable because those thick walls make it nearly impossible to shed heat.
More on topic: the power supply for my headphone amp popped last night (one too many Texas/French lightning storms, I guess).
New one is on the way. If the unit is actually damaged, it might be time for an upgrade to a nifty rack unit like yours.