Do you mean only GH for your first cyle or just adding GH to your first cycle.
If you are looking at a GH only cycle, then you might be disappointed. GH tends not to be mass builder. Maybe if you are older a GH levels have really dropped you may put on some lean mass. How old are you?
I think many people feel that GH is effective at helping weightloss although you may find cheaper ways.
GH added to a stack with anabolics may give you better results then you had then without it. Again, it is expensive for the extra edge.