The herbs in it are supposed to stimulate your body's natural test production. It's not androgenic. Your estrogen levels won't shoot up. You probably won't have any gains that you can credit to T-Bomb. You might be more aggressive. You will be packing more wood.
Changing something with your diet or getting more strict with it would most likely give you better gains. But, after all is said, give it a try. It could theoretically help you out. If you have a gf, then it will probably make her happy.
EDIT: Just noticed that the saponins are only standardized to 40% with the tribulus. 80% or higher is the way to go. I'm not saying it won't work, just that I normally recommend people try Nitro T3 instead by NxLabs. And I'm sure there are several better things that I'm not familiar with.