Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very good mugs with a couple small flaws

As many other reviewers have said, these are nice solid mugs that are almost perfect. The two problems are: 1) Large recesses on the bottom that catch about three tablespoons of water when run through the dishwasher and, 2) A molding seam that runs around the mug and even down the inside of the handle. The seam is large and sharp enough to be painful when holding the mug for an extended time. I'll probably find some way to take the edge off the seam on the inside of the handle, but that shouldn't be necessary, it should have been taken care of by the manufacturer.