I can't agree enough. You're looking for a designer because you don't have the skills so the more you let them make informed design decisions, the better result

I can't agree enough. You're looking for a designer because you don't have the skills so the more you let them make informed design decisions, the better result you'll get. This doesn't mean let them do anything and use it even if you hate it but try to refrain from making design suggestions and instead ask for reasoning behind decisions you're not thrilled with. To find a good designer, try enlisting a designer to help.