I've had it since 1999, and most of it is SUPERB. The TMP theme is the best version I've ever heard, a little faster tempo, more military-style drums, and it's so much clearer than than the one on the TMP soundtrack. The little computerized "zot" noise at the beginning is annoying. The Klingon Battle track is also superb, except they felt the need to dub LOUD and CHEESY lazer sounds over it. The TWOK suite is very good, but the place it really shines are in the overtures to Generations and ST6. They appear back to back, and due to their similarity, it almost seems to blend into one track.
There is another one Telarc did called "Bond and Beyond" with great TV and movie theme renditions. The medley of '60's show themes is awesome, as are the renditions from Terminator 2, First Blood, and of course, James Bond.