I finally gave up on these clowns after four years of office visits! I had to wait over an hour on average for each visit in the past four years and each time office managements are getting worse and worse. If you asked something (i,e. reschedudling), they will threaten you with penalty and fees. My waiting time doesn't count for them, but late arrival (i.e. 10 minutes) will count for fees!!
Pros: Location if you are in RTP
Cons: Rude receptionist and office manager, over an hour waiting
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