Unfortunately, too many people have been given anabolic steroids and become permanently dependent on testosterone replacement subsequently. Before embarking on growth hormone therapy you should make sure that your testosterone is supplemented adequately so that your values of free testosterone are in the normal range.
Growth hormone does not seem to disrupt levels of other hormones is in your body in any permanent way, something which has being fairly closely followed in clinical trials. Evidence for people with HIV and lipodystrophy indicates that growth hormone leads to some improvements in lean body mass and physical performance and that there is a reduction in visceral fat without significant loss of arm or leg fat. It sounds like you are rather fortunate to have it approved and I would take the opportunity to use it.
Anecdotally, the one problem that is sometimes seen with growth hormone, beyond the well-known aches and pains in muscles and joints, fluid retention, and the need to monitor for diabetes, is that some people find the benefits that they gain during growth hormone therapy resolve in the months after they discontinue. However, I think that if one can be encouraged to maintain physical activity and be careful with your diet after the course of growth hormone many of the favourable benefits can be sustained.