It all depends. If you are familiar with large parrots, understand that re-homed parrots may have some baggage that has been instilled for years. If you can handle and understand these problems and deal with them then an older grey can bring joy and great accomplishment to your life. A baby grey is a clean slate and will be looking to its new flock (you) to guide it on its way. If you don't know what you are doing and haven't researched and taken that information about greys seriously, you can turn that sweet baby into a grey that needs to be re-homed and that will be carrying all that baggage that you helped provide. So do a lot of research, ask a lot of questions and mostly understand yourself enough to know if you are one of those special people who can handle and love an older grey with baggage. I take the quote in my signature block very seriously.
Karma to you Raleej337 for asking this question and doing your research before getting your grey.