I received all 8 in the mail yesterday, and so far, so fantastic. I listened to The Wheel, The Anal Staircase, and The Snow discs. The sound quality is excellent-- it's so nice to have CD-quality versions of tracks I've only ever had on vinyl-- and the bonus material is almost overwhelming in its scope and quality. The Horse Rotorvator demos alone would have been worth the $80 to me, but there is just so much to process.
Coil is probably the most important thing to me when it comes to music, if I really am honest with myself. I have been a collector since 1994, and have maybe 99% of the official releases, and believe me, these CDs are important and worth it.