I was curious so I looked up reviews of One Medical. Almost universally, people note that they charge well more than average for services, fail to meet thier appointment wait time promises, limit access to doctors, and have terrible customer service that fails to respond timely and often fails to respond at all.
$99 seems to be a lot of money to pay to be ignored.
In have used OneMedical since 2015. They have been by far the best experience I have had with a PCP. I have described them as the Costco of doctors offices. I pay a membership fee and have had none of th3 wait time issues you've described. I am concerned about the Amazon acquisition, but HIPPA is fairly strong.