not really. i used it on my legs, and i came out in a rash. it didn't even get rid of half of it. shave, if your brave, wax or epilate - but be prepared for pain. however, there are more permanent methods.
I also have long, thick, dense, dark hair running from just under my belly button, down until it meets my pubic hair - hope that wasn't too graphic, i just want you to know we're in the same boat. anyway, mine is related to pcos/elevated testosterone levels. i remove it by shaving and have epilight/laser treatment to permanently remove it.