I personally feel like changa does have a smoother come up and is much easier to handle imo. But vaporhuasca or even a strong enough changa blend can be a very intense breakthrough experience. A harmala + DMT breakthrough has a specific kind of intensity that you just don't get with DMT alone. I've personally had most of my "near death experiences" with DMT from vaporhuasca or some of my past changa blends. It can be a very intense combo and that's why I usually introduce people to the breakthrough experience by just DMT itself.

Another thing to keep in mind is all the possible interactions MAOIs can have with a lot of common medications, unless my friend is comfortable with disclosing what medications they take to me I personally don't feel comfortable giving them an MAOI just for safety reasons.