Daas Yochid summed it up well. To expand, ATIME helps couples navigate and understand their medical options, and the halachic issues that may come up, they have Rabbanim for the latter, and for the former, affiliated doctors who give lectures and answer questions on online forums. They provide emotional support for those experiencing infertility, undergoing difficult treatment, experiencing pregnancy loss through online forums, seminars, literature, shabbatons, etc. They can help with insurance coverage issues.