I have the RoundFlash, I like to use it, but I let the pictures speak for itself.
Just my opinion, I find the catch lights too distracting.
Yeah, the catchlights are very prominent in the eyes because they are so thick. "Real" ringlights are thinner and subtler. The roundFlash is great for products, too. I like to photograph things I want to sell on ebay with the ringlight. Great results.