Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Braun KF510-BK

I'm disappointed in this coffee maker. Either the water passes thru the coffee too quickly giving a weakened taste (shouldn't happen w/ a milita filter system) or, worse yet, the carafe doesn't activate the 'trip' device and "no" water comes thruunless you stand there and monitor the flow. We've had a number of coffee floods. We love the styling, the grip and the ease of reading the water level...we just don't trust the system...wehave had Braun's in the past but this one's the pits!