I have 4 females. Once is spayed as she was a rescue, she is almost 2 years old. The other 3 are ages 7 years, 11 mos. and 8 mos. They all have their moments. The oldest was never aggressive ever. She has always been the sweetest girl, she was a little stinker and didn't like to be held when she was younger; but, was still sweet. She is now a little cuddle bunny, and loves to be held and cuddle with me. She is still moody though; but, she gets over very fast with a treat. The other two are going through their hormonal changes, and they change daily. They are both super sweet. I did think about getting them spayed at one time because of the ovarian cancer issue; but, decided against it. I was too worried about the anesthesia issues, and didn't want to risk losing them. They go through periods of aggression, but, nothing I can't handle. They have to have "time outs" once in a while. But, nothing i would trade for anything. The one that is spayed is actually the most aggressive of all of them, and is in constant need of attention or she will sulk. I still love her with all my heart though. But, seeing how aggressive she is compared to my other older one I don't see any difference and not enough to put the others under the knife. So, I deal with them as they are, natural and free to be who they want when they want. Bunnies are a lot like us, they are all different with different moods and personalities. So, it is really up to you and the bunny. I have heard of buns getting out of control. Maybe I've been lucky enough to not have had that issue. I just give them lots of love and understanding and we all do fine as is.