@saraphim i think probably about as much as a normal store-bought one. which is to say, extremely variable.
@saraphim very fairy, but mostly i was guessing that your aunt is probably somewhat older and not very with it, so to speak, and therefore less likely to realize that an AI-generated card is going to potentially come across bad. although given your description of it... probs not very much love unless the non-textual bits of it looks really cool by her standards if she didn't like, bother to read it...