Vantaggi
Ancestry.com has a great company culture, and management listens. The HR staff is second to none and will update you on job opening within the company. If your full-time the benefits packages are amazing. If you are a college student looking for a flexible part-time job look no further. Free ice cream, soda, coffee, cereal, fruit, and full meals are super cheap because the company subsidizes the onsite cafe.
Svantaggi
If you are looking into member services(the call center) the company culture is completely different. It is in a separate building, training is top notch, and the current management is empathetic. However, several years ago a certain manager squashed the culture of the call center and turned it into a grinder. He got promoted.