It works very well we've used about a skid of it this year alone. I like it better than beet pulp from a convience standpoint and it is also cheaper. It expands double or more the amount you feed and beet pulp does not. Experiment yourself. Take a 16oz cup put 8oz in pour a couple oz'sof water in and watch what happens. JMO
We use a similar product call Bulk'Em UP by surefed... Like has been stated it works well... I'm mixing with cottonseed hull right now to hold a steer as well...It may be cheaper than the sunglo product if you can find it..