[Opinions] Very Russian...
...So I *love* it. :-) I only like it pronounced ee-VAHN. IE-van just doesn't have "that sound" to it.
Actually, Henry Ivan (Henrik Ivan?) is an awesome combo. Two others that I like are Patrick Ivan and Sinjin Ivan. I guess I like it as a middle name. I'm having an awfully hard time finding a middle name for it.
Henrik Ivan is amazing. I think I'm going to steal that combo...