Thoughts and opinions / experience?

[07N54]

Heyyo! I'm new to the forum and I have a ball python and a corn snake currently. I was thinking about getting my dream snake (emerald tree boa) because I have access to a 125g tank that I think would be perfect for the size of emeralds. I was just curious about the aggressiveness of emerald tree boas. I've heard mixed opinions and experiences with them. Some people have told me that if you start young with handling them frequently they won't be too aggressive and how would you go about feeding them? Would you free them frozen or lives? Etc. I figured this would be the best place to start for information on them.