I'm going to be alone on this but I like Dr. Park. I have worked with this personality type so many times, I like how the root of his infuriating personality is this need. It's not so much that I like the character, but like the honesty used to portray him.
I agree with you. I wouldn't say as though I like him so much as I like the fact that I really appreciate that he is there and that the writing in the show will hopefully reflect the writing here, which is a really difficult character to empathize with that hopefully through Keong Sim's performance and progression over time will become someone you can at the very least understand better, if not entirely embrace. (I hate to come back to ER all the time, but I did watch that show religiously for about eight years before I lost interest. ;) And I feel a lot of similarity in the potential of Park's character to Peter Benton on ER, someone who is in so many ways so abrasive and unsympathetic but over time, you come to learn a lot more about him as he learns more about himself, changing your perception of him a lot.)