In terms of hypertrophy it does little more than water retention... supposed to make you metabolise protein better but I'm skeptical as to if it does/how much it does.

It's easier to get dehydrated on it and it can also give you a calcium deficiency... but as long as you keep drinking water and don't shy away from some dairy in your diet that won't happen... the calcium one is pretty unlikely.

It's supposed to make you stronger and give you 'more endurance'... according to the containers etc anyway...

Not exactly true... all you are doing is saturating your muscles with Creatine Phosphate... which is an energy source... it will help you in activities that use the ATP CP energy system... short efforts at maximum intensity... it won't actually make the amount of force that your muscles can contract Significantly larger and it won't do anything for your endurance... you might be able to sprint for 2-5 seconds longer before slowing etc... But that is not 'endurance'

Always fancied trying it but obviously because I am pretty tight at 81kg I can't afford any water retention. What I would say is to eat red meat... don't over cook it or you'll kill all of the nutrients but creatine is stored in muscles... by us and animals... you'll get a bit of it in red meat but won't be over saturating your self with it.

It's still not a black and white deal (like a lot of things in sports science... ) but that's my take on it at the moment for boxers.