Thanks Reef, I do have a glass canopy over the tank. I made sure I had one before I got the fish.
It hides somewhat but does come out for a good while after I feed the tank. It will scoot quickly back into it's hole if I move quickly but it doesn't seem to be excessively shy. It will come up to the glass to check me out when I'm there.
A very nice fish. I actually have two of them in the tank. The other is a bit smaller and it tends to hide more.