Reef Paradise is amazing; I've been to a few of the other 'big' and popular, bar-setting reef-stores like Tropicorium and Preuss Pets, and they are stellar and awesome in their own right for their own reasons -- I've yet to see a store in Michigan that has the coral selection that Reef Paradise has. Luckily for me, it's local too, and even on my way home from work ... unlucky for my wallet.
I took for granted how vast the selection was there, as it was the second store I really started going to (Ocean Depot being the first) and the first with any real coral selection. Andy gets some really cool stuff in, and has a lot of corals I've only ever seen online, or at the first show I went to - Blue Hornet Zoa's, Leptoseris, and a really superb/colorful selection of acro frags, and countless others.
Not only that, but Andy's one of the best proprieters I've come across in the business; while he wants to make money, he also wants you to be successful. In other words, he's not going to sell you something that he doesn't think will last in your tank, or might be spotty in it's survival.
He's really helped me get on track, and get a more focused view of how to proceed with problems I'm facing, and get me in the right direction, as well as introduced me to a ton of cool coral I never knew was out there.
If you're in the Flint Area, or even driving through, I really suggest you drop by, and at least look at what he's got to offer if you've never done so. So far (and I could be proven wrong later) I haven't seen a better walk in store in Michigan with his coral selection. period.