My experience with Grok has been excellent. Here's another opinion from the WSJ.

Wall Street Journal author Daniel Akst says I Finally Have a Physician Who's Available and Who Gets Me. Meet Dr. Grok.

That's a free link. Here are a few snips.

I tried AI out of frustration, necessity, and yes also curiosity, but it has since become my favorite "physician," if you don't mind using the term loosely. Obviously, AI is no substitute for a real doctor in many circumstances. But in many nonemergency circumstances, a real doctor isn't available. And 20 minutes of his time, if you can get it, isn't enough to really know a patient or manage his or her health. My experience hints at the usefulness AI may someday have in finding a way out of our expensive, fragmented and ineffective approach to human health. It also highlights deficiencies in the way even elite care is provided today.

At my last annual physical I told him I desperately needed somebody to quarterback my care, but that it was nearly impossible to get in to see him. "It's like getting an audience with the pope," he acknowledged. "I can't quarterback anything."

When a blood test showed somewhat low iron, for instance, one hurried physician sent me a message saying, "Eat lentils." But I already eat lots of iron-rich red meat. Lentils contain non-heme iron, which is poorly absorbed unless accompanied by food containing vitamin C, all of which the physician left unsaid.