I had dental care from Dr. Mark, which was excellent, and the hygienist always did terrific cleanings. Very thorough, friendly, and gentle. The offices and services seem to be state-of-the-art.
I also received orthodontia from a colleague of Dr. Mark who is no long with his practice. That experience was unsatisfactory and unpleasant, so I no longer go to Dr. Mark, because he didn't apologize on her behalf when I complained. A simple "I'm sorry you had a bad experience" would have satisfied me.
But I would encourage my own kids, or anyone else, to receive care from Dr. Mark or his staff, particularly as I know the orthodontist no longer practices there.