At this point in time, I can say that I have no objections to folds. It would depend on how it looks...

I have seen some creativity course brochures that were folded in thirds and I liked them. And one of the companies who I am talking to for direct mailing prefers A4 folded in half (so either 2 sided A5 or 4 sided A5) - but are OM with otehr sizes/ shapes also... so these are not limitations for you....

I am open to plain full side paper as well as folds...