I received my Adipower yesterday and I tried it.
So far, I really like it. It's very stable, I feel like I'm glued on the ground. I didn't go heavy yet because I go deeper so I wanted to be sure the the pattern is OK.
Also I wasn't upright as I thought and I discovered that I've never positioned the bar correctly on my back. It was like between high bar and low bar. I wasn't able to find my traps, but I was able to go heavy. So now I have to relearn the good way.
Shoes
Re: Shoes
I've tried lifters before I was able to hit heavier weight on oly lifts but I still prefer flat as possible for everything. I would rather work on my mobility to be able to hit all the lifts similar to being barefoot, seems more functional. Unless you have mobility issues, I think the lower to the ground the better. Just my opinion. Right now I lift in the inov8 bare x shoes. Great shoes