Before I knew to ask the tech, in my prior cycle, I went to meet with my FN and asked her. She told me that my emby that cycle was "a AA grade and looked fantastic. Really unusual for someone of your age to get an emby that good..."
Now, things to bare in mind....
Even though that miraculous emby looked good, it wasn't. It was a dud. What an emby looks like and what it is genetically are two very different things. In the end it implanted VERY quickly but I had a MC at 8 1/2 weeks.
The other thing with gradings is that a AA emby can so easily drift away, yet a CC could be a miracle fighter emby. You really can't tell. Plenty of women are holding their babies from lesser grade embies, and yet here I am with empty arms. Also, keep in mind that when you hear a grading, it does taint your expectations and hence your faith in the emby. Right from the start I had no faith my BC emby would take. How sad that I, as that emby's Momma, did not support it. From now on in I choose not to ask for that very reason.
As far as reports go...I've never received anything on paper, and I've not heard of anyone receiving a copy in writing but for the occasional 'mistake' where it was given to the Momma by accident.