I saw Sophie Bi several years ago. Place was a bit pokey (top floor of a house) and all the action happened on a massage table and the sofa. Her oral technique is decent enough and she emptied my sack nicely (twice I think) but the rickety massage table in an open plan lounge and entrance plus the general disorder made me very nervous, I kept thinking I was going to fall off the damn table or someone was going to walk in.
She is not a looker by any stretch but did the job. I won't be returning though.