Instruct: Classify the given Amazon review as either positive or negative.
Query: Thermal Lid failure

We've been using this product for a while now, and recently, the lid to the coffee pot has 'failed'. The water does not flow thru the lid fast enough, causing everything to backup and leave a big mess on the counter - nearly every single time.I recently ordered a new lid from Cuisinart - $8 plus shipping.I've cleaned the lid by soaking in vinigar and running vinigar thru the brewing process a couple times, but while some coffee particles came out, the thing still leaves a mess on the counter.If you have been using this product for a while, be forwarned!