I have loved my Keurig since the moment I unwrapped it cleaned it and marveled over my first single cup of brewed coffee, but it lacked...a lot. I couldn't adjust the strength of the brew and had only 4 size options which didn't include enough coffee to share and at the largest brew the coffee tasted so watered down. Along come Keurig 2.0. It can brew multiple sizes, you have the option of brewing it strong or regular AND you can do a carafe of 4 cups so you can have coffee to share if more coffee drinkers find their way to your home. So far I like it, but it brews differently, not as smooth in operation as my other Keurig, and you have to use the newest version of Kcups (unless you google hacks to get around that). So I give it 4 stars because I love the newer updates that Keurig needed but having to 'hack' to use my older Kcups I have as well as the reusable cups (to save our landfills of plastic).