Has anyone used Zawa AI for client brand work? Quality concerns?

I've been experimenting with Zawa AI for quick brand mockups before presenting concepts to clients, and the turnaround is impressive. But I'm hesitant to rely on it for final deliverables since I'm not sure about licensing or originality guarantees. Has anyone here used it in actual client projects? Curious if you've run into issues or if it's solid enough to include in proposals.