I received my SS-860 soprano sax last Saturday and I am really enjoying it! It's the first time I've played soprano sax so I'm concentrating on long tones and scales right now.
I am surprised at my progress so far. I'm usually to get decent tone and intonation with the SS-860 already. I just took up alto sax again a couple of weeks ago after 40 years of not playing, so I'm rusty in general on saxophone, but the SS-860 is a real pleasure to play.
I am currently using a JodyJazz HR* Custom Dark #5 mouthpiece with a Rovlar ligature and generally D'Addario Jazz Select #2 reeds. I go over my reeds with a reed tool and this really makes a difference in tone, intonation, and playability.
I may take up tenor sax at some point. If so, I'll get a Jean Paul tenor sax.
Keep up the good work!