Update: I own a previous version of this shoe. The sole coloring/pattern in particular is different. My review may not be as relevant.

I rated 4 stars as I think this is a great shoe, but I'd like to have a little little more traction. On surfaces such as basketball courts, laminate, or smooth finish concrete, I feel this shoe lacks a little grip. It seems like the tread pattern is alright, but that the compound or surface finish of the compound isn't as sticky as I might like. The shoe is very light and airy, and I think it has enough support for the movements I intend to do with it. It provides more lateral movement stability and control than fivefigers, which I was using before this shoe. The shoe seems to fit fairly true to size, and laces up snugly on my foot. I'm only a few workouts in, but it seems like the construction will hold up well to indoor use.

Like: Weight, stability (for what the shoe is), minimal heel to toe drop, openness and breathability, looks, balance.

Dislike: I might like additional grip from the tread.

recommend for: crossfit, indoor gym work

Update:
I've put a ~3 months of weightlifting-centric crossfit on these shoes now. They've held up well. As an additional dislike, I'd say that I feel the inward angle of and extra room/material on the toe is a bit extreme. I'm not sure if I could claim that the shoe slows my sprints, but I don't think the sole outline is quite right for running, at least for my form. The top-down view of the shoe doesn't suggest the extreme angling, but the bottom-up view (showing the sole of the shoe) does. I wouldn't remove another star, but I would revise my purchase, having this experience.

Update 2:
After 9 months, I'd say the traction is only a concern on surfaces which would be slick for any shoe; it's not an issue on tractioned rubber (e.g. diamond plate patterned), astroturf, asphalt, or textured concrete (e.g. outside, or sidewalk). A stickier compound may still be an improvement. I still see the sole profile as a bit odd, though it's a 4-star shoe. I use this shoe in a hot, dry, often dusty environment.

Update 3: After almost a year and a half, the shoe is holding up fine. No concerns over build quality / durability with appropriate use (I could see rope climbing and all-terrain work tearing the shoe up).