Are there any synonyms for bitter-sweet? I've tried having a look on online thesauri, but haven't had much luck in finding anything suitable.
The context I wish to use this in: I have described something (the proliferation of data) in text as having both positive and negative attributes, and would like to state that something else, similarly, possesses this 'bitter-sweet' characteristic.
I don't want to use 'bitter-sweet', however, because it doesn't sound serious or formal enough in the context I am using it in, if that makes sense. Is there another word that describes something as having both beneficial and disadvantageous features?