Instruct: Classify the given Amazon review as either positive or negative.
Query: Extreme pops

When i got this puzzle the pops and turning weren't to good. After i lubed the puzzle the turning improved alot. But the pieces poped more often. One time it poped so much i had to completely take it apart. when i got to the last center piece i found out that it was missing. when i noticed that i contated Billy hansen and got a replaced it. If i had to recomend the rubiks 4x4 i would tell them to get the eastsheen 4x4 due to the better overall quality.