Was in KC this week due to a family medical situation. My mom actually brought me to Miles of Exotics (but wouldn't go in due to their reptile department having, well, reptiles, which she is phobic of).
They have a decent store, but my impression of their aquatics department was very "meh." For one, I counted at least three different non-aquatic plants being sold as aquatic (oh Borneo Fern, you are beautiful to me, but you will slowly rot and die in my tank). Their plant tanks are nice bowfronts with decent lighting, but holy mother of algae was it infested by BBA! They had some really good looking plants I wanted but man, that BBA pushed me away. A good 30% of the gravel was covered by it and the back wall looked like it was being grown intentionally as decor on it. I let the lady manning the fish room some ways to treat it with Excel/H2O2 and CO2 and prevent it (though I should talk, come back home from KC and my tank glass is riddled with GSA [forgot to have my buddy dose the tank while I was gone]), but she seemed very indifferent.
Decent selection of fish (including some nice arrowanas) but don't expect to be wowed if you have been to some top notch LFS before