I live around chinatown and have taken these buses and I must say... those ladies that sell the tickets are incredibly loud and rude. All they want is your money and as soon as you buy a ticket, they just shoo you away. The buses almost never leave on time because they try to fill up the entire bus. So if they say they're leaving at 4, they'll end up leaving at 4:30 to 5 just so they can fill an extra 2 seats. I recently discovered Boltbus.com which is generally the same price or cheaper depending on when you book the tickets but I'd definitely prefer that over the chinatown buses.