Lupron for endo

What do you ladies think about lupron? My doctor wants to put me on it because the two types of birth control I have been on to help with my endo have caused me severe breakthrough bleeding that just wont stop. I am in constant pain and ontop of it birth control makes me feel sick to my stomache. I am at a loss of what to do. My doctor says the next step is to try lupron, but I have heard terrible things about it so I am very hesitant. Have any of you ladies been on lupron? What was your experience? Have any of you been through what im going through? Do you have any suggestions? Please help.