I'm returning them but that doesn't mean they aren't great...just a bit much for my idea.  I should have paid closer attention that they are about 25# each which makes me hesitant to put them up with just the 2 screws (maybe a 3rd or adding elbow bottom brackets would make me feel more comfortable.  They're also pretty visually hefty & imposing.  If you want to make a statement they are probably a good bet, but I am going in another direction.