There was a post on this forum some time ago with comments about the Owens Corning system. Scan down and you should find it.

I believe it is expensive but don't have any comparisons with a professionally installed drywall system. Ours is DIY and drywall because that is the look we wanted. Personally, I think the Owens Corning product looks too much like an office but it does offer the ability to easily open a section and examine what is behind. The look you want and any need to accessibility should determine your style. Photos of ours are linked from "My Page".