Instruct: Classify an Amazon review into positive or negative sentiment.
Query: compilation of high quality trance produced in 1992-1993

I bought this compilation of tracks from 1992 and 1993 to get the monumental theme 'Acid Eiffel' on CD, and was surprised to find that every track on the disc exceeded my expectations and was at nearly the same high level of quality. It was well worth the investment.The style is analog trance and acidic trance techno with occasional IDM and Detroit affectations, more interesting than his later works. Some tracks sound more dated than others, but regardless, fans of warm analog techno with rich production values will dig it. Many of today's trance producers could learn a lot from it.The original version was released on the ZYX label and had 2 CDs, while this US edition has only one CD. The tracks that are missing are remixes and coproductions with other artists (Reese Project, Vernon S Wonderland, System 7, Alaska, Moby, and System 01).