Without being able to compare to other releases (owned it years ago when it first came out), I can tell you this version is outstanding even without a frame of reference. This is a loud recording (it's Metal, afterall), but the bass and drums have great slam, the guitars have excellent tone and Mustaine's vocals in particular are reason alone to get this version. If you get it, listen to Sweating Bullets and Symphony of Destruction for great examples.
This is very well balanced, keeping in mind once again tha the "balance" I speak of is in the context of an all-loud-all-the-time Metal band, but all of the instruments are mixed perfectly in proportion to one another. Also of particular note, the studio space and acoustics really stand out here.
Considering you should be able to find it new for a decent price (If I remember correctly, I spent $22 for it at, of all places, an HMV), it's really a no brainer. This is an extremely satisfying presentation of one of the major icons of late '80s/early '90s Heavy Metal.