I have been playing with yo-yos for many years. My collection includes Duncans, Yomegas and even a few of the very desirable and collectible Tom Kuhn yo-yos. The Aerospin is, by far the best.
It competes with any other yo-yo I've seen in terms of design. The internal mechanism allows for long sleep times -- rivaling the best ball bearing yo-yos. The shape is smooth and comfortable, providing you with a butterfly-like profile but more of a standard Imperial shape.
The best part of it, though, by far, are the soft rims. First, these are much gentler on the hand than any other yo-yo -- and important factor in terms of comfort. Also, you will not worry about damaging other items, allowing you to try riskier tricks without worry. This baby will even bounce off the floor or coffee table without leaving a scratch. As a result, you'll try tricks you may have been afraid to try in the past.
Finally, the design allows you to adjust the responsiveness or separate the halves simply by giving them a twist, a feature found on the Tom Kuhn yo-yos. This will allow you to clear a jammed string easily.
With this yo-yo, I've been able to master tricks like around the world and man on the flying trapeze, which I have not been able to perform with any other yo-yo.
At this price, this yo-yo can't be beat! You won't be disappointed.