As far as being male, it never bothered me. I do prefer female obgyns when possible, but PCP doesn't matter to me
I like that he is the only provider in the office, so you see him at every appointment and can have a real relationship. I find him to be unusually caring and dedicated. He really helped turn my life around by addressing both physical health and mental health issues. He gives you as much time as you need at appointments and is easy to talk to (and I'm the type who gets anxious and usually has a hard time being open with doctors). The office is also very easy to deal with, they communicate mostly by email so no long waits on the phone. They also have a patient portal where you can access all your records and lab results.
I have had a wonderful experience with Dr. Werzberger as well. A real mentch. Handled a medical emergency when I was traveling with so much patience right up until the shabbos zman.