I'm happy with the CodaBow Prodigy bow, I used it more than a month now before the review.
Amateur intermediate, 5 years, I used three student bows on my Reghin intermediate violin until making the step for the Prodigy. The last bow I felt it quite well, warped insignificantly in AC, but it was producing a "gritty" sound, this is from the resonating frequency of the stick, a bit low. Also, I could not tame the bow to do simply piano and dolce. Of course it was me, but the bow did not help at all. Spicatto was ok-ish, Sautille not starting.
With the Prodigy, dolce is really dolce(sweet), piano it's easy now. The frequency of the carbon stick is much higher than the student bow, that's the sweet sound. Spicatto is ok(I am still working) and Sautille is easy to start and sustain. This bow helped my progress, now I can replicate things also backwards, on the old bow - spicatto, sautille and piani work(still cannot do dolce, because the old bow sounds gritty, this is the bow, not the lack of the skill)
I know that I don't do justice yet to the bow or to the violin, but I feel at least they don't hold me back as I observed with the student bow, there is room for progress.