Very short. Very brief. The IO almost put the case on hold because he thought my birth certificate was funny - and I'm the USC!!! lol. I assured him that just because it idoesn't look like the newer certs it doesn't mean it wasn't real. He went ahead and approved it on the spot after we spoke. he was like... "ya, you know... I know you'r'e american, so I'm gonna go ahead and stamp it approved... pending one last thing." when asked what that lst thing was and if it was name check - he asnwered, no - namecheck has passed already - you'll receive your GC in about 3 weeks. Sure enough... we got it in 3 weeks!
he asked the standard questions i.e.:
what ur phone #?
what's your wifes moms name?
what's her fathers name?
where do you guys live?
We brought tons of evidence with us and he didnt' even bother to looki at pictures or anything... pretty smooth.
Overall not bad.