How small is a mini star and does it perform as well as a hatrick or 5 star?
Yes it will perform very well. No better or worse than any other yoyo, just different.
In your preferences. I haven’t tried one yet, but I think the shape is unusual, and would feel weird in your hand.
The shape is great. But if you’re accustomed to larger diameter yoyos, the size takes a bit of getting used to.