Can't count the # of times I have used it.  The phillips head is awesome as are the tweezers, pen and scissors.  the nail file comes in handy and I have even used the ruler.  The pen has saved me a couple of times.  The blade is small and works fine, but is limited by it's size.  I carry a Spyderco Delica for the more serious knife work.  Have not used the "emergency blade", but if ever a tracheostomy is needed....I am ready!  (can't think of anything else you would need an "emergency blade" for???)  And the sharp hook thingy???? Not sure for what it is typically used.