Dr Penchas is as good as it gets, as is his staff. He is professional and inspires confidence, you'll feel like you have a real expert hand crafting your smile. His staff is also very professional and friendly.
Dr Penchas also seems to be kind of serious, yet he has a great sense of humor. I like a dentist who is getting the job done and is being professional and focused, rather than a chatty one who is distracted and sometimes misses things.
Dr Penchas will probably care more about your teeth then you do... You feel the same from his office staff who is warm and friendly and cares about the patient.
If you are going to invest money into your smile, its worth going with the very best.