I'll keep this short because I really only want to comment on 2 things.  Overall, this is a great watch if you like the feeling of a watch being on your wrist.  It is a heavier watch that is thicker than most because of the vibrating function.  If you like a lighter watch, this is for sure not the watch for you...but if you like the feeling of a watch on your wrist you will probably like it.

Secondly, considering the size of the watch it has pretty good vibration.  There are so many reviews stating it has poor vibration...come on, it is a watch!!  It is not meant to be a tableside vibrating alarm clock but rather a way of letting you know your alarm is going off WHEN IT'S ON YOUR WRIST without everybody else knowing.  Personally, I think it does a great job of doing exactly that.  I gave this 4 stars rather than 5 only because the band is reallllllly stiff and the picture gives the impression it is a darker brown (I received one with a jet black band).