I remember someone saying that they might be a bit of a PITA to properly aim...?
I'm kinda so-so on how they look. It depends on how they go with the rest of the car, and which version of them that you get - amber corners, clear with chrome, or carbon fiber/smoked. Obviously, they're going to stick out like a sore thumb if the rest of the car looks like it's still stuck in 1990, but if you've got a hood and some more modern wheels and the like, or perhaps a coordinating paint scheme going on, then they can actually look pretty subtle. The pics I've seen folks post of 'em on here can go either way - some I didn't notice were one-piece until someone else pointed them out, whereas others just looked downright tacky.
I wouldn't bother with them, myself. You pretty much can't go wrong with a set of crystal-clear (OEM-fit) lenses and matching sidemarkers on any Fox, IMO.