Update: I've installed them and they look great. Pics to follow.

Pro: assembly housing appears to be more durable than OEM - thicker and more solid feel to them.
Con: slight manufacturing imperfections on lining up the lens to the assembly, but it isn't very noticeable and impossible to tell after the shroud gets on them. No complaints on fitment - seem pretty solid. I cannot recommend them at-the-moment since I've only just got an impression on them. Time will tell. Light output is good.