I like the look of those better than the Kuryakin ones I have. I don't mind the swing out for opening the trunk, but I'm waiting for the day when herself leans too hard on them (even though I've instructed her not to) climbing on.
I can tell you from personal experience, those Kury arms will take a lot of stress before they break.
I was always afraid they would break the trunk but I managed to snap that wide mounting plate smooth in half with no damage to the bike or mounting points.
But that is as far as I go as far as talking good about them. I had almost broke then a few times and it was always due to them being swung out. One time in particular, I pulled up in the driveway and let the wife off the bike and left again to a friends house.
As I was riding in between our cars in the driveway, I heard a WHACK and the bike jerked to the left.
The arm rest was swung out and smacked the headlight on my truck and put a nice scratch on the fender. If I would have been a little closer I am sure it would have ripped it off the bike and probably cause me to crash into the side of one of the vehicles.
Needless to say, I hate these things and although I now have holes in the rear pockets and truck from mounting them, I will not go back to them again. I retained the mounting hardware and those now fill the holes.