I like this Keurig system because it's pretty straightforward. The cup sizes are a little strange, each size coming in at 5.25 oz. for the small, 7.25 oz. for the medium, and 9.25 for the large. Maybe they do that to fill an average size cup, or maybe fill larger mugs so that there's room for creamer. Either way, I kinda wish they'd be straight forward sizes like 6, 8, and 10 or 12 oz. it's not a huge issue, it's a little funny that their measurements are so precise with the .25 extra. I do like the system because the K-Cups are your average K-Cup. Nothing special or hard to find. I don't care for the way any bagged ground coffee that's put into an empty universal K-Cup turns out. Never tastes as good as making it in a coffee pot. The pre-made K-Cups seem to turn out better. Not sure if it's the size of a pre-made K-Cup's grind vs. a bagged ground coffee or not, but pre-packaged K-Cups make for the best cups of coffee. Overall, this model is nice for something quick, fast, and basic. It's very user friendly and while it takes a bit for the water to heat up, I'm sure it can only heat up water so fast. I would recommend this to anyone in the market for making single cups only. It's very tedious if you ever need to fill a thermos full of coffee, and doesn't seem to make the coffee to it's full strength if you brew cup after cup. But again, single, on-the-go coffees are great and convenient!