I have been shooting one for a little while now. I am toying with several rests now that season is over. I will say that for the bow hunter the WB has many outstanding features. No arrow fall off, simple tough, and quiet. The quiet part is provided you are shooting a quiet carbon arrow with a "slick" finish. I have found it very easy and forgiving to tune. I have modified it every way possible and found that what works best for me is to trim the back side flat, and leave the front untouched. I used to cut a slot in the top for easier arrow loading, but now I just load from the back. The rest is stronger this way and once you get used to it it's not hard at all.
As for vanes ripping off, they can if you use the wrong vanes and glue. I have found Arizona vanes with the fast set gel hold tough and do not wrinkle. Duravanes are also excellent. Feathers don't hold up as well, they get "fuzzy" on the ends which makes them louder in flight. The still fly well, but I think the WB is best used with the proper Vanes. It is not perfect, you will have to find a good vane and glue that stick well to the arrow, and learn to reload the arrow. I have also found that 4" fletch works best. For me right now, combining ease of tune, good accuracy, and the simple durable features with no arrow fall off the WB is leading the pack for my new hunting rest next year. You have to be willing to work with it, but I think it will be worth it for most bowhunters.

TAKE YOUR KIDS HUNTING AND YOU WON'T BE HUNTING FOR YOUR KIDS