In the Keurig 2.0, the pressure blows out the filter in the pod which allows the grounds to flow freely into the cup.

I hated it...the filter seems to either come loose or completely plug up leading to grounds going everywhere

Normally good coffee but most of the pods either back up and spew coffee out of the top or blow out the filters and load the cup with grounds

The K cups were very stale and tasted bitter I was really disappointed as I have ordered other brand and never had an issue with freshness