been using it for over a year on my ex racer, he's featured in July Horse magazine, only feed he will eat without ever being fussy. He also had a history of being tight in his back and tied up twice and so far has really helped. It is also one of the lowest starch feds I can find that still keeps condition on him, really recommend it. He has it all year round along with their equi jewel and hi fi.
Fab stuff, my ex racer used to tie up and so raced on it. I contacted Saracen who advised Re-leve and Equi Jewell and he looks fab, it's not cheap but my horse loves it and will eat it all up.
I have some of our dressage horses on it along with Equi Jewel and Alfa A, they all do very well on it and I find using it in combination with the EJ makes it more flexible in terms of summer/winter weight.