I just received the B-grade Shu-Ta I purchased from Dizzo. The one word I would use to describe the experience is excellent. Communication was clear and timely, questions were answered patiently, shipping was quick, and, proof of shipment was sent. Dizzo did all the little things right.
The yoyo itself was very well packed. No risk of USPS turning it into abstract sculpture. It has the B-Grade engraving, but, it plays smooth. I tend not to get wrapped up about vibe, Dizzo called it an 8 of 10 smooth, I would have called it even smoother.
All in all, I had a great experience. I believe he still has some items on BST, check them out, he was great to deal with.