Honestly, I'm confused about this misconception! Vulnerable was by far their 3rd best album, aka, the best album they've released since in love and death.
I Come Alive, the main track, is such a Used song! It's fantastic. Plus the rest of the album has all the elements of what I thought people liked about the Used.
I agree Artwork wasn't a great effort, with only a track or two of quality, but the rest? I don't get it. Sure, nothing will beat self-titled, but they're still putting out SOLID stuff in my opinion.