Uh.... I beat him like a week maybe two weeks ago and found it quite easy. After each time he goes down you just rest to heal up. I was at like level 45-46 when I took him out and I also keep my gear fairly up to date so I was using mostly low 40's blues and a 45 weapon from reaper. I was using jaesa as well.
Maybe it was easier because I am a jugg? I just used my tanking cd's and I think 1 medpac when it felt needed.