I have just bought MOI and am very pleased as it feels easier to generate models compared to other Nurbs modellers (I've tried Rhino and Maya). I can also say that I'm very impressed with the Nurbs to Mesh conversion, especially the ngon conversion. I imported an .obj model into XSI, it had some really interesting curved surfaces, booleans and a number of fillets. I have to say I was really amazed at the quality of the import. It looked identical to the one in MOI and no seams were visible!!

Regards,
Alan.