Is Unsolicited Evidence worth submitting?
I noticed myuscis has a section to submit Unsolicited Evidence where uscis officer may or may not look at it. I believe it's for N400 applications only but I could be wrong. I believe it's for after you initially submit your N400 application or of get a RFE for N400 like us.
Has anyone ever submitted Unsolicited Evidence? Do you feel it's helped your case?
You mean the Additional Evidence section? Yes.
To answer your second question, doubtful, only because IO is under no obligation to use any additional evidence submitted towards an approval. Hard to know whether it would help a N400 case, since the applicant would have no clue whether it was even looked at or not.