10/10: Bright light, ideal texture, really nice weight, size handles well and reads well for a theater audience, durability is on point. Highly recommended; will buy again (next time with the programmable LED!).
This ball is exceptional. I was looking for a fairly large LED stage ball, moderately weighty, that could hold up to the rigors of use in partnered work (read: lots of drops during movement research :D). This one has proven a sound choice on all counts.
My partner and I initially developed our act using a rhythmic gymnastics ball and a combination of contact juggling, rhythmic gymnastics ball technique, acro-balancing, and ballet, so I wasn't 100% sure about the size--but, in fact, 100mm is about perfect. It makes the contact juggling parts much more accessible (especially for my partner, who is 4'11") without losing the visual focus that the larger ball provided.
The weight is good for contact juggling moves and also for the momentum-driven toss/catch moves used in rhythmic gymnastics.
According to the reviews that I've read, this ball is essentially the gold standard. The Spinsterz is a great shop--quick shipping, competitive pricing, sound policies. You can't go wrong with this purchase.