I have read most of the reviews both good and bad on here. I have had good luck with my Brew 'n Go, and I think I know why.I didn't read the instructions!I drink 1 cup of coffee every morning and it bothered me that I was throwing alot of coffee away when I used my full sized coffeemaker, so I got this little machine. Because I did not read the instructions, I only used about 1 1/2 tablespoons of coffee, this would explain why there is no coffee ground leakage. Also, I leave the lid off the mug when I brew, then add my stuff and close it up, that works fine for me (I agree that the lid is hard to take off). On the weekends when I'm home I brew into a regular coffee mug, that seems to work well too. I feel bad that so many people had problems with a machine that I love!