My mare is wonderful in it! I'm getting one for my pony for driving soon
I was teaching a riding lesson and needed to school a horse before the lesson, but her bridle was being used by another horse - I had brought my indian hackamore to show my coworkers. I tried the indian hackamore in the new horse, a percher standardbred cross - old amish cart horse whi until recently didn't know how to ride. I tried first on the ground, she gave in both directions quietly and backed up with it- so I hopped on. She was perfect! Better than bitted as she has a lump on her toungue from a tongue twitch in her past life.
My only warning, I used it on my mare for line-driving and I tripped over a pole, yanked on it pretty hard and she spent the rest of the day head tossing. Horse's noses are very delicate, so be careful not to accidently use to much or you can bruise them like I did >.<
I put a nose fuzzy on mine so it's even softer now but she still gives very well. Make sure to get the type where the strap you attach the reins to runs through a metal loop not the rope loop, the metal loop gives a more immediate release of pressure, the rope gets sticky.
Et me know what you think when you get it!