Lalaloopsy

Hi guys! I just had my interview today. I everything went smoothly until the consular started reviewing our documents. We missed one part on the i-134, but apart from that he said everything looks fine and he doesn't see any problem. However, he returned my passport and gave me a 221-g slip that has instructions for us to send back my passport and a fully completed i-134 form. So as soon as I got out of the embassy, me and my fiance were Facetiming and we had the documents express mailed back to the US embassy on the same day. I wonder if anyone has had the same experience and if so, how long did it take for the embassy to process your documents?