CEE really needs a decent dose - whenever I've used creatine I'm hitting a good 15g a day, loading up 5x a day (3g x5 split throughout the day) before and after training too.
However that's how I responded on it. Look into how creatine works, and see if your diet and training would benefit from it and test it. Do a loading phase then take it for 4-5 weeks, and come off - check how it's helped. If nothing, increase the load, or increase the times a day or the length. Or, try just doing what is recommended on the box.
Everybody is different, and whilst the supplements have the same effect on most people in terms of cellular it's hugely reliant on your metabolism, LBM, diet and training and natrual hormonal shifts/balances. I have had my test levels measured and they are on the high end of the bell curve - I'm lucky
Such supps only do a very very small percentage difference, they help if administered correctly but the "wow" factor won't be over night or in a few weeks. It'll take a while to really notice whether or not that 1 or 2 extra reps that the supp may or may not help you get makes a difference.
Experiment, safely, but read up on it from science books and medical journals not from forums where "experts" tell you one thing or another, or supplement shops which tell you to buy £100s of their product.