T-5's are great at keeping stuff alive, but I do not like the coloration of corals under them. A lot of my corals loose color under the t-5 setups I have at the shop. Monti's are the most dramatic for color loss, as well as acros. I had a Bali acro go brown under t-5's and is now turning back to purple in my LED show tank.
Once LED's come down in price I am gonna change em all out. Curren is coming out with a new LED system next year. As more are developed the price should come down.