The only negatives I have of fitting the wheel and associated parts are that the indicators don't self cancel anymore - a minor irritant. Also, even with the slim-line boss fitted the wheel is a bit too close to me, or slightly too high, even with the steering column adjusted to its lowest level.
I'll post pics in my build/blog thread later if you want a look....
I'd say reps aim to copy a product to a high quality under a different name. Lenso to BBS etc.
And I'd say fakes aim to copy a product with varying quality and pass it off as genuine.