The size is perfect for my powder room.  It is very light for a mirror.  To hang it you only need a single screw/nail.  I anchored mine because there was no stud directly behind the center of it, but I honestly could have got away with just a screw because it is so light.
 I think it looks slightly better in the pictures, but the rusty finish does come off as natural which I like.  This mirror is great if you are going for a nautical theme and this is the size you are looking for.