It's definitely NOT a false promise of efficiency, at least, not in all or many cases.

My wife is a physician, and when permitted by patients, uses one of these tools. It's been an enormous time-saver for her. She works a 32-hour week, meaning 32 hours of seeing patients. Before these tools, she was regularly spending an extra 8 to 16 hours, e. g. two full work days, writing notes and sending messages. That time has been more than cut in half. She would never give up the tool if she didn't have a choice.

According to her, it is reasonably accurate, but all notes must be manually reviewed (not just as in her organization requires that, but also as in if she didn't, it would be obvious due to its mistakes). The biggest issue is with things like names and medications, stuff that isn't present in ordinary English, as well as mishearing the results of diagnostic tests, numbers, etc.

It's rare for patients to refuse it.