I assume I have aphantasia, since I've never been able to "visualize" in the way that other people seem to be able to.

It seems to be strictly limited to visual imagery however. I remember lyrics / poems / quotes better than most people I know and I do pretty well on those wine-training smell tests. I can easily hear music in my head.

I've never really thought of it as a disadvantage, I assumed that I just had a different kind of imagination.