There's not much to say. It's flawless. I export everything from 3dsMax via Ultimate Unwrap, then export to b3d, even if I'm going to take it to Gile[s] next. The UU exporter just makes life easy. In the case that you're coming from Max, it also gives you the option of using Physique, which I believe B3dPIpeLine doesn't. But yeah, if I've never managed to break it, it must be idiot proof.