It's a bit of a curate's egg.

Meaning

Something that is partly good and partly bad.

Examples

• John: What do you think of the new product launch?
• Alice: <b>It's a bit of a curate's egg</b>. Some aspects are excellent, others need improvement.
• John: Which parts specifically need improvement?
• Alice: The marketing campaign is weak. Overall, <b>it's a bit of a curate's egg</b>.