Made my first cup of coffee this morning in my new 6-cup Brewmaster. I read the reviews of the thing after I bought it (of course) and took note of the many complaints about leaking. It is an idiosyncratic little device. The coffee basket isn't quite deep enough for standard 10-cup filters, so that when you close the top, the mashing action can push the water arm out of the way, which I'm guessing can lead to leaks. Thing is, I see no mention of a water arm--dripper--whatever in the instructions or in the diagram, and the part is movable. If it moves, you should mention it in the manual, especially if said 'it' needs to be in a certain position for unit to work properly. Because you have to move the water arm out of the way to take the basket and reservoir in and out, and if you don't move it back in place after you put the reservoir and basket back in the machine, the water will not drip over the coffee but elsewhere. Given that the arm can also move around after you close the lid, it really needs to be mentioned in the directions. Too bad it doesn't lock in place. It moves too easily.
The brand of coffee you use will help determine whether you can 1) fill the thing to capacity, and 2) get a decent cup of coffee. Instructions say to add 3/4 tbsp per 6 oz cup instead of the usual 1 tbsp (or 2 tbsp in the case of Starbucks coffee, which I tried first). Make note of your preferred coffee if you're thinking of buying this. My first cup of Starbucks was definitely weak. I then made a cup using Eight O'Clock French Roast, and that tasted better but was still a little weak for me. My rule of thumb will be 'more coffee, less water.'
During clean-up, I noticed dried coffee on the reservoir's metal warming plate. Not sure how much flavor that would lend to any coffee left in the reservoir, but it's one more reason to stick to one cup at a time.
I agree with the other reviewers who say that the coffee is not piping hot. Not much of a drawback for me, but if you're one of those people who adds a lot of milk/cream to your coffee, you will wind up with a lukewarm brew.
Over all, the unit is a decent fill-in for someone who just wants a cup at a time--many larger coffeemakers have trouble when brewing smaller amounts. I like it because it's fast, small, doesn't take up much room on my kitchen counter, and there's no carafe to worry about. As for the coffee-water proportions, every coffeemaker is different and you always need to work that out anyway.
One star for the manual, because it's incomplete. If I hadn't read the other reviews here, I wouldn't have been on the lookout for leaks and wouldn't have caught the fact that the water arm had moved after I closed the lid.
UPDATE (8/29/2010): Still using my Brew Station. It still makes pretty good coffee. If I fill to the 4-cup line, I add 6-7 level tablespoons of autodrip-grind coffee. Yes, it's more coffee than the directions say to use, but that's the amount needed to make a strong brew.
The unit has leaked since the beginning, but these aren't signs of breakage or damage. It just isn't a tightly closed system, so there are plenty of places for water to condense and drip. The underside of the lid especially collects water, which can drip down the back of the unit when you open it to remove the used grounds. Leaking also increases as deposits build up--it really is important to clean the unit regularly with a good descaler like CLR.
Still give it 3 stars, maybe 3 1/2 for lasting as long as it has. If it breaks down at some point, I would consider getting another.