Global Aquatics blows. Super overpriced and like they said, there is the issue of disease. Coral selection is not great and again, overpriced. Jan's is decent for dry goods like medication and food. The fish selection isn't too bad, but you won't find anything rare. Mainly bread and butter stuff. They have a tiny frag tank with overpriced frags and two large tanks with LPS that is blasted by Chinese LEDs and don't look all that great. Mystic Reef is a used car lot. They're super annoying and I will never shop there again.
The best shops are in Orange County.
Mark, one of the guys from Coral Collection is opening his own shop in San Bernardino and hopefully it'll turn into something good.