I do not drink coffee, but I have a friend who has a Keurig machine. She only buys the pods on a sale, but has a reusable pod that she uses most of the time.
Dad has a Keurig, I do not think he notices the quility of coffee. He puts in loads of sweetener and powdered milk. Although he did complain about his machine earlier this year. I gave it a thorough cleaning and ran vinegar through it a couple times and he is happy again.
There are loads of Nespresso pads available on Amazon.