Wait, isn't $200 basically nothing for a tool that's supposed to save you hours every week? I feel like people expect PERFECTION from AI but forget that human assistants make WAY bigger mistakes for way more money. One double booking seems like a pretty cheap lesson compared to paying someone $15 an hour to do the same thing.
Might want to double check if that was a one time glitch or a pattern, since $200 is steep for a tool that can't manage the basics. Scheduling conflicts are a pretty big red flag for something meant to save you headaches. You tried reaching out to their support team to see if they'll make it right?