80,000 mile service on 2009 Mercedes-Benz ML350

We are thinking about purchasing this 2009 MB ML 350, with 81,000 miles. We believe it is due for the B service. Are these cars truly dependable after 100,000 miles?! Good purchase? Feedback, please!

Asked by for the 2009 Mercedes-Benz ML350
these cars are money pits after 50k miles. you will be sorry. just sayin