Is a 3BB good grading for embryo?!

I have 4 embryos all around the same 3BB grading, 5 day blastocyst. We did PGT-A genetic testing as well.

Have any of you been successful with a 3BB graded embryo?

How many FET transfers did it take until you were successful?

Please share your story and experiences with me.

Thank you! Baby dust!