I use the LSR308s (305s bigger brother) in a secondary system. They are really excellent, and make me easily forget my main system due to their musicality, bass extension, soundstage, midrange, etc. They sound much bigger than they actually are, and they do the disappearing and 3D thing to my very happy surprise. In fact, if you use them within their limitations, they will make you very happy as well.
I did find the need to to coat the interior back panel with a 70mil thick black FatMat sound deadener, along with the insides and the plastic tweeter waveguide (internally); well worth the effort and small cost, and it really made a nice difference for the better.