Instruct: Classify a given review as either positive or negative.
Query: There is degradation in quality now they're being phased out.

My husband had heard that this was happening, but hoped it wasn't true. Although we haven't tried all the blades we purchased, of the first group of five, the first two lasted for only 2-3 shaves before showing significant signs of wear. This is very disappointing, not to mention a shame it might be a waste of money to have purchased these, but we both liked the MP3 best and hoped it would be kept. I will update my review if it turns out that it was perhaps a bad batch.