This was a great thread. I'm considering a Lifereef sump at the moment. It's been several years now, what can you say good and bad about their products?
We got out of the hobby in 2012 due to move to Colorado and we couldn't take our tanks with us. We are now back in NC and are getting back into the hobby. The 150 is still in storage and will remain there; we're going with a different setup for our new tank and eventually will make a large tank in our addition when it's finished in the far future. Lifereef sump system worked like a charm the years that we had it up and running.