Its simple, its clean, and convenient. There are many makers of k-cups to choose from so finding an acceptable cup of coffee made this way isn't too hard. I went through a few variety packs, read reviews on Amazon and the like, to narrow my choices. I then used Amazon's subscribe and save feature, visits to slick deals, and even my costco membership, to buy k-cups are good prices.
During summer my coffee drinking goes down and the ability to just make one cup is great. Cooler months and its time for the Bonavita, sometimes its good when friends want some but even then I have dropped back to the k-cup.
I only agree with the "expensive coffee" part.
I've got a tassimo machine which has capsules for both coffee and milk - you use both,and it makes delicious latte, much better than I would be able to do myself - at least not without frothing milk, which is messy and I would rather not do it. The machine itself was $40 which is hardly expensive, and the coffee is most absolutely not garbage. And the convenience is huge. It could be cheaper, but it works out at something like $0.80 per cup, which I am ok with, since I rarely drink more than 1 cup a day anyway.
During summer my coffee drinking goes down and the ability to just make one cup is great. Cooler months and its time for the Bonavita, sometimes its good when friends want some but even then I have dropped back to the k-cup.