The best converter is the human coder. I don't recommend the VS converter.... Even the guys that built it don't recommend it. And it doesn't do a true conversion. It will convert what it can, then wraps interop wrappers around the rest (especialy true if it's a DB app using ADO.)
From the people I've heard, in the amount of time it takes to clean up what the converter screws up, the app could have been rewritten from scratch.
Tg