Instruct: Classify the given review into positive or negative sentiment.
Query: The best there is, but still not perfect!

Really excellent. I looked long & hard for the perfect bath sponge -- not too wimpy, not too harsh, got to fit between my toes... the Buf-Puf comes closest to meeting my "ideal". Yet it's not perfect: it's too small. 3M would be smart to come up with another version, twice the size (Buf-Puf-Plus), not thicker, just more surface area. Another idea: Buf-Puf-Plus-Pocket, with a separation between the layers to hold a bar of soap.