I have a Gypsy Sit Upon thing and am not liking it much. I feel like I'm sitting on a big bouncy ball and I can't seem to stay comfortable. A friend of mine loaned it to me but it just feels weird to me. I can't seem to get the hang of it. I do sit on an office chair so maybe it's designed more for those that sit on hard chairs?
I have been on the lookout for a posture pillow. I'm going to get one one of these days. I keep checking Walmart to see if they have one. I feel better knowing that it can go back if it isn't all that it claims.