Just a quick update. We had I bio appointment a few days ago. Our invitations were for 9 and 10 AM, but all our family came together at 9 and there were no problems with it. Since there were 5 of us we were separated into groups, I and my younger son, my wife with younger daughter and older daughter, who is 13 at the moment were on her own.
The whole process took about 10 min for all of us. Interestingly enough, they took my daughter's 10 fingers fingerprint, while it was supposed to be only one finger. For all those, who had their 10 fingers fingerprints taken, case status updated at night to "Case was updated to show fingerprints were taken"
I also burned one of my fingers before the bio and was worried, that I won't be able to get the bio done because a fingertip little damaged, but the officer added a little more of a fingerprint fluid and pressed this finger a little harder and everything worked. Everyone in the USCIS was friendly and helpful.
I also have a small question. I realized, that I printed all the forms and supporting documents double-sided.
1. Were there any cases, where the case would have been rejected because the form was double-sided?
2. Should I print one-sided forms and documents and take them to the interview next week?