HGH is age dependent, if you're under 30, you're not going to get much, unless you do high doses. I'm in my 40's and wasn't very impressed by HGH and I have low HGH/IGF-1 levels.
I think it's to much money for what you get from it, then there's the wait to see results, up to 3 months. It's a lot of money to wait 3 months to see if you have a good reaction to it.
JohnnyB