My Tommasini Diamante was just superb, really had it all. Terrific ride/handling, very stiff. The outrageous paint, very well executed, and chrome & lug shaping, etc, were all just extra catnip.
Other italian bikes I've had long term relationships with were a Pinarello and a Tommaso. Both were terrific, but in more of a generic terrific italian steel road bike way. I'm pretty sure I could have picked the Tommasini out in a blind test, not so sure about the others.