Instruct: Classify the given Amazon review as either positive or negative.
Query: Not their best but OK

I got a bit worried when I heard this album for the first time in 1979. It is more style than content. The magic of the previous albums is barely there. It is, of course, better than most other albums released in 1979, but hardly up to ABBA's incredibly high standards. The beautiful Chiquitita is a classic and some of the other tracks, like Angeleyes and If It Wasn't For The Nights, are excellent. Voulez-Vous and Does Your Mother Know are almost embarrassing but immacculately produced and great fun. ABBA made more convincing disco tracks later on (Gimme Gimme Gimme and Lay All Your Love On Me). And they made the best music of their lives towards the end of their career, notably The Winner Takes It All and the Super Trouper LP in 1980.